Anatomy_ Muscle Tables_2 Flashcards
external intercostals
deep muscles of the thorax, breathing<br></br>(external=toward the outside, inter=between, cost=rib)
external intercostals: nerve supply
intercostal nerves
internal intercostals
deep muscles of the thorax, breathing<br></br>(internal=toward the inside, deep)
internal intercostals: nerve supply
intercostal nerves
diaphragm
deep muscles of the thorax, breathing<br></br>(dia=across, phragm=partition)
diaphragm: nerve supply
phrenic nerves
muscles of the anterior and lateral abdominal wall
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>four paired flat muscles; function in support and protection of abdominal viscera; flexion and lateral flexion of vertebral column
external oblique
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(external=toward outside, oblique=running at an angle)
external oblique: nerve supply
intercostal nerves (T7-T12)
internal oblique
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(internal=toward the inside, deep)
internal oblique: nerve supply
intercostal nerves (T7-T12) and L1
transversus abdominis: nerve supply
intercostal nerves (T7-T12) and L1
transversus abdominis
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(transverse=running straight across or transversely)
rectus abdominis
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(rectus=straight, abdom=abdomen)
rectus abdominis: nerve supply
intercostal nerves (T6 or T7-T12)
levator ani: nerve supply
S3, S4, and inferior rectal nerve (branch of pudendal nerve)
coccygeus: nerve supply
S4 and S5
deep transverse perineal muscle: nerve supply
pudendal nerve
external urethral sphincter: nerve supply
pudendal nerve
ischiocavernosus: nerve supply
pudendal nerve
bulbospongiousus: nerve supply
pudendal nerve
superficial transverse perineal muscle: nerve supply
pudendal nerve
pectoralis minor: nerve supply
medial and lateral pectoral nerves (C6-C8)
serratus anterior: nerve supply
long thoracic nerve (C5-C7)
subclavius: nerve supply
nerve to subclavius (C5 and C6)
trapezius: nerve supply
accessory nerve (cranial nerve XI); C3 and C4
levator scapulae: nerve supply
cervical spinal nerves and dorsal scapular nerve (C3-C5)
rhomboids: nerve supply
dorsal scapular nerve (C4 and especially C5)
pectoralis major: nerve supply
lateral and medial pectoral nerves (C5-C8, and T1)
deltoid: nerve supply
axillary nerve (C5 and C6)
latissimus dorsi: nerve supply
thoracodorsal nerve (C6-C8)
teres major: nerve supply
lower subscapular nerve (C5-C7)
subscapularis: nerve supply
subscapular nerves (C5 and C6)
supraspinatus: nerve supply
suprascapular nerve (C5 and C6)
infraspinatus: nerve supply
suprascapular nerve
teres minor: nerve supply
axillary nerve (C5 and C6)
coracobrachialis: nerve supply
musculocutaneous nerve (C5-C7)
triceps brachii: nerve supply
radial nerve (C6-C8)
anconeus: nerve supply
radial nerve
brachioradialis: nerve supply
radial nerve (C5 and C6)
biceps brachii: nerve supply
musculocutaneous nerve (C5 and C6)
brachialis: nerve supply
musculocutaneous nerve
pronator teres: nerve supply
median nerve (C6 and C7)
flexor carpi radialis: nerve supply
median nerve (C6 and C7)
palmaris longus: nerve supply
median nerve (C7 and C8)
flexor carpi ulnaris: nerve supply
ulnar nerve (C8 and T1)
flexor digitorum superficialis: nerve supply
median nerve (C7, C8, and T1)
flexor pollicis longus: nerve supply
branch of median nerve (C7 and C8)
flexor digitorum profundus: nerve supply
medial half by ulnar nerve; lateral half by mediannerve (C7 and C8)
pronator quadratus: nerve supply
median nerve (C7 and C8)
extensor carpi radialis longus: nerve supply
radial nerve (C5 and C6)
extensor carpi radialis brevis: nerve supply
radial nerve (posterior interosseous nerve, branch of radial nerve, C7 and C8)
extensor digitorum: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor carpi ulnaris: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
supinator: nerve supply
radial nerve (posterior interosseous nerve, C6 and C7)
abductor pollicis longus: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor pollicis brevis and longus: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor indicis: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
abductor pollicis brevis: nerve supply
median nerve (C8 and T1)
flexor pollicis brevis: nerve supply
median (or occasionally ulnar) nerve (C8 and T1)
opponens pollicis: nerve supply
median (or occasionally ulnar) nerve
adductor pollicis: nerve supply
ulnar nerve (C8 and T1)
abductor digiti minimi: nerve supply
ulnar nerve (C8 and T1)<br></br>tibial nerve (lateral plantar nerve, a branch of tibial nerve, S2, and S3)
flexor digiti minimi brevis: nerve supply
ulnar nerve<br></br>tibial nerve (lateral plantar nerve, S2 and S3)
opponens digiti minimi: nerve supply
ulnar nerve
lumbricals: nerve supply
median nerve (lateral two) and ulnar nerve (medial two) (C8 and T1)<br></br>tibial nerve (medial plantar nerve to first lumbrical and lateral plantar nerve to second through fourth lumbricals, L5-S2)
palmar interossei: nerve supply
ulnar nerve
dorsal interossei: nerve supply
ulnar nerve
iliacus: nerve supply
femoral nerve (L2 and L3)
psoas major: nerve supply
ventral rami L1-L3
tensor fasciae latae: nerve supply
superior gluteal nerve (L4-S1)
sartorius: nerve supply
femoral nerve (L2 and L3)
rectus femoris: nerve supply
femoral nerve (L2-L4)
vastus lateralis: nerve supply
femoral nerve
vastus medialis: nerve supply
femoral nerve
vastus intermedius: nerve supply
femoral nerve
pectineus: nerve supply
femoral and sometimes obturator nerve (L2 and L3)
gracilis: nerve supply
obturator nerve (L2 and L3)
adductor longus: nerve supply
obturator nerve (L2-L4)
adductor brevis: nerve supply
obturator nerve (L2 and L3)
adductor magnus: nerve supply
obturator nerve and sciatic nerve (L2-L4)
gluteus maximus: nerve supply
inferior gluteal nerve (L5-S2)
gludeus medius: nerve supply
superior gluteal nerve (L4-S1)
gluteus minimus: nerve supply
superior gluteal nerve (L4-S1)
biceps femoris: nerve supply
sciatic nerve–tibial nerve to long head, common fibular nerve to short head (L5-S2)
semitendinosus: nerve supply
sciatic nerve–tibial nerve portion (L5-S2)
semimembranosus: nerve supply
sciatic nerve–tibial nerve portion (L5-S2)
piriformis: nerve supply
L4-S1
obturator externus: nerve supply
obturator nerve (L3 and L4)
obturator internus: nerve supply
L5 and S1
gemellus: nerve supply
L5 and S1
quadratus femoris: nerve supply
L5 and S1
tibialis anterior: nerve supply
deep fibular nerve (L4 and L5)
extensor digitorum longus: nerve supply
deep fibular nerve (L5 and S1)
fibularis (peroneus) tertius: nerve supply
deep fibular nerve (L5 and S1)
extensor hallucis longus: nerve supply
deep fibular nerve (L5 and S1)
fibularis (peronius) longus: nerve supply
superficial fibular nerve (L5 and S1)
fibularis (peroneus) brevis: nerve supply
superficial fibular nerve (L5 and S1)
gastrocnemius: nerve supply
tibial nerve (S1 and S2)
solius: nerve supply
tibial nerve (S1 and S2)
plantaris: nerve supply
tibial nerve (S1 and S2)
popliteus: nerve supply
tibial nerve (L4-S1)
flexor digitorum longus: nerve supply
tibial nerve (L5-S2)
flexor hallucis longus: nerve supply
tibial nerve (L5-S2)
tibialis posterior: nerve supply
tibial nerve (L4 and L5)
extensor digitorum brevis: nerve supply
deep fibular nerve (L5 and S1)
flexor digitorum brevis: nerve supply
tibial nerve (medial plantar nerve, a branch of tibial nerve, S1 and S2)
abductor hallucis: nerve supply
tibial nerve (medial plantar nerve, S1 and S2)
flexor accessorius (quadratus plantae): nerve supply
tibial nerve (lateral plantar nerve, S2 and S3)
flexor hallucis brevis: nerve supply
tibial nerve (medial plantar nerve, S1 and S2)
adductor hallucis: nerve supply
tibial nerve (lateral plantar nerve, S2 and S3)
plantar and dorsal interossei: nerve supply
tibial nerve (lateral plantar nerve, S2 and S3)
levator ani
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the pelvic diaphragm<br></br>(levator=raises, ani=anus)
coccygeus
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the pelvic diaphragm<br></br>(coccy=coccyx)
deep transverse perineal muscle
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the urogenital diaphragm<br></br>(deep=far from surface, transverse=across, perine=near anus)
external urethral sphincter
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the urogenital diaphragm<br></br>(sphin=squeeze)
ischocavernosus
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the superficial perineal space<br></br>(ischi=hip, caverna=hollow chamber)
bulbospongiosus
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the superficial perineal space<br></br>(bulbon=bulb, spongio=sponge
superficial transverse perineal muscle
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the superficial perineal space<br></br>(superficial=closer to surface)
pectoralis minor
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the anterior thorax<br></br>(pectus=chest, breast, minor=lesser)
serratus anterior
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the anterior thorax<br></br>(serratus=saw)
subclavius
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the anterior thorax<br></br>(sub=under, beneath, clav=clavicle)
trapezius
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the posterior thorax<br></br>(trapezion=irregular four-sided figure)
levator scapulae
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the posterior thorax<br></br>(levator=raises)
rhomboids
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the posterior thorax<br></br>major and minor<br></br>(rhomboid=diamond-shaped
pectoralis major
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(pect=breast, chest, major=larger)
deltoid
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(delta=triangular)
latissimus dorsi
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(latissimus=widest, dorsi=back)
teres major
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(teres=round, major=larger)
subscapularis
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(sub=under, scapular=scapula)
supraspinatus
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(supra=above, over, spin=spine)
infraspinatus
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(infro=below)
teres minor
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(teres=round, minor=lesser)
coracobrachialis
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(coraco=coracoid, brachi=arm)
triceps brachii
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>posterior muscles<br></br>(triceps=three heads, brachi=arm)
anconeus
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>posterior muscles<br></br>(ancon=elbow)
brachioradialis
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>posterior muscles<br></br>muscles of the forearm, movements of the wrist, hand, and fingers<br></br>superficial muscles of posterior compartment<br></br>(radi=radius, ray)
biceps brachii
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>anterior muscles<br></br>(biceps=two heads)
brachialis
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>anterior muscles
pronator teres
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(pronation=turning plam posteriorly, or down, teres=round)
flexor carpi radialis
muscles of the forearm, movements of the rist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(flex=decrease angle between two bones, carpi=wrist, radi=radius)
palmaris longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(palma=palm, longus=long)
flexor carpi ulnaris
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(ulnar=ulna)
flexor digitorum superficialis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(digit=finger, toe, superficial=close to surface)
anterior muscles (forearm)
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>of these eight muscles of the anterior fascial compartment, most arise from a common flexor tendon attached to the medial epicondyle of the humerus and have additional origins as well. most of the tendons of insertion of these flexors are held in place at the wrist by a thickening of deep fascia called the flexor retinaculum
flexor pollicis longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>deep muscles of anterior compartment<br></br>(pollex=thumb)
flexor digitorum profundus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>deep muscles of anterior compartment<br></br>(profund=deep)
pronator quadratus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>deep muscles of anterior compartment<br></br>(quad=square, four-sided
posterior muscles (forearm)
“muscles of the forearm, movements of the wrist, hand, and fingers<br></br>these muscles of the posterior fascial compartment are all innervated by the radial nerve or its branches. more than half of the posterior compartment muscles aris from a common extensor origin tendon attached to the posterior surface of the lateral epicondyle of the humerus and adjacent fascia. the extensor tendons are held in place at the posterior aspect of the wrist by the extensor retinaculum, which prevents ““bowstringing”” of these tendons when the wrist is hyperextended. the extensor muscles of the fingers end in a broad hood over the dorsal side of the digits, the extensor expansion”
extensor carpi radialis longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of posterior compartment<br></br>(extend=increase angle between two bones)
extensor carpi radialis brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of posterior compartment<br></br>(brevis=short)
extensor digitorum
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of posterior compartment
extensor carpi ulnaris
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of the posterior compartment
supinator
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of posterior compartment<br></br>(supination=turning palm anteriorly or upward)
abductor pollicis longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of the posterior compartment<br></br>(abduct=movement away from median plane)
extensor pollicis brevis and longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of posterior compartment
extensor indicis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of posterior compartment<br></br>(indicis=index finger)
abductor pollicis brevis
intrinsic muscles of the mand, fine movements of the fingers<br></br>thenar muscles in ball of thumb<br></br>(pollex=thumb)
flexor pollicis brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>thenar muscles in ball of thumb
opponens pollicis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>thenar muscles in ball of thumb<br></br>(opponens=opposition)
adductor pollicis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>thenar muscles in ball of thumb
abductor digiti minimi
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>hypothenar muscles in ball of little finger<br></br>(digiti minimi=little finger)
flexor digiti minimi brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>hypothenar muscles in ball of little finger<br></br>intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>third layer
opponens digiti minimi
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>hypothenar muscles in ball of little finger
lumbricals
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>midpalmar muscles<br></br>intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>second layer<br></br>(lumbric=earthworm)
palmar interossei
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>midpalmar muscles<br></br>(interossei=between bones)
dorsal interossei
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>midpalmar muscles
muscles of the anterior compartment of leg
“muscles of the leg, movements of the ankle and toes<br></br>all muscles of the anterior compartment of the leg are dorsiflexors of the ankle and have a common innervation, the deep fibular nerve. paralysis of the anterior muscle group causes foot drop, which requires that one lift the leg unusually high during walking to prevent tripping over one’s toes. ““shin splints”” is a painful inflammatory condition of the muscles of the anterior compartment”
tibialis anterior
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(tibial=tibia, anterior=toward the front)
extensor digitorum longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(extensor=increases angle at a joint, digit=finger or toe, longus=long)
fibularis (peroneus) tertius
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(perone=fibula, tertius=third)
extensor hallucis longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(hallux=great toe)
muscles of the lateral compartment of leg
muscles of the leg, movements of the ankle and toes<br></br>these muscles have a common innervation, the superficial fibular nerve. besides plantar flexion and foot eversion, these muscles stabilize the lateral ankle and lateral logitudinal arch of the foot
fibularis (peroneus) longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the lateral compartment of leg
fibularis (peroneus) brevis
muscles of the leg, movements of the ankle and toes<br></br>muscles of the lateral compartment of leg<br></br>(brevis=short)
muscles of the posterior compartment of leg
muscles of the leg, movements of the ankle and toes<br></br>the muscles of the posterior compartment of the leg have a common innervation, the tibial nerve. they act as synergists to plantar flex the ankle
triceps surae
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>refers to muscle pair (gastrocnemius and soleus) that shapes the posterior calf and inserts via a common tendon into the calcaneus of the heel; this calcaneal tendon (Achilles tendon) is the largest tendon in the body; prime movers of plantar flexion
gastrocnemius
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>triceps surae<br></br>(gaster=belly, kneme=leg)
soleus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartmetn of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>triceps surae<br></br>(soleus=fish)
plantaris
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>(planta=sole of foot)
popliteus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>deep muscles of the posterior compartment of leg<br></br>(poplit=back of knee)
flexor digitorum longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posteior compartment of leg<br></br>deep muscles of the posterior compartment of leg<br></br>(flexor=decrease angle at a joint)
flexor hallucis longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posteior compartment of leg<br></br>deep muscles of the posterior compartment of leg
tibialis posterior
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posteior compartment of leg<br></br>deep muscles of the posterior compartment of leg<br></br>(posterior=toward the back)
extensor digitorum brevis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscle on dorsum of foot
flexor digitorum brevis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>first layer (most superficial)
abductor hallucis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>first layer (most superficial)<br></br>(hallux=the big toe)
obductor digiti minimi
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>first layer (most superficial)
flexor accessorius
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>second layer
flexor hallucis brevis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>third layer
adductor hallucis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>third layer
plantar and dorsal interossei
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>fourth layer (deepest)
iliopsoas
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>iliopsoas is a composite of two closely related muscles (iliacus and psoas major) whose fibers pass under the inguinal ligament to insert via a common tendon on the femur
iliacus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>(iliac=ilium)
psoas major
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>(psoa=loin muscle, major=larger)
tensor fasciae latae
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>(tensor=to make tense, fascia=band, lata=wide)
sartorius
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(sartor=tailor)
quadriceps femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>hos four separate heads (quadriceps=four heads) that form the flest of front and sides of thigh. these heads (rectus femoris, and lateral, medial, and intermediate vastus muscles) have a common insertion tendon, the quadriceps tendon, which inserts into the patella and then via the patellar ligament into tebial tuberosity. the quadriceps is a powerful leg extensor used in climbing, jumping, running, and rising from seated position. the group is innervated by femoral nerve. the tone of quadriceps is important in strengthening the knee joint
rectus femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(rectus=straight, femoris=femur)
vastus lateralis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartmetn of thigh<br></br>(vastus=large, lateralis=lateral)
vastus medialis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(medialis=medial)
vastus intermedius
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(intermedius=intermediate)
pectineus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(pecten=comb)
gracilis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(gracilis=slender)
adductors
“muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>this large muscle mass consists of three muscles (longus, brevis, and magnus) forming medial aspect of thigh. they arise from inferior part of pelvis and insert at various levels on femur. all are used in movements taht press thights together, as when astride a horse; important in pelvic tilting movements that occur during walking and in fixing the hip when the knee is flexed and the feet is off the ground. the entire group is innervated by obturate nerve. strain or stretching of a muscle in this group is called a ““pulled groin”””
adductor longus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(longus=long)
adductor brevis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(brevis=short)
adductor magnus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(adduct=move toward midline, magnus=large)
gluteus maximus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>gluteal muscles–origin on pelvis or sacrum<br></br>(glutos=buttock, maximus=largest)
gluteus medius
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>gluteal mmuscles–origin on pelvis or sacrum<br></br>(medius=middle)
gluteus minimus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>gluteal muscles–origin on pelvis or sacrum<br></br>(minimus=smallest)
hamstrings
“muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>the hamstrings are fleshy muscles of the posterior thigh (biceps femoris, semitendinosus, and semimembranosus). they cross both the hip and knee joints and are prime movers of thigh extension and leg flexion. the group has a common origin from the ischial tuberosity and is innervated by sciatic nerve (which is composed of two nerves, the tibila nad common fibular nerves, wrapped by a connective tissue sheath). the name fof this muscle group comes from old butchers’ practice of using the tendons to hang hams for smoking”
biceps femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>(biceps=two heads)
semitendinosus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>(semi=half, tendinosus=tendon)
semimembranosus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>(membranosus=membrane)
piriformis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(piri=pear, forma=shape)
obturator externus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(obturator=obturator foramen, externus=outside)
obturator inturnus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(internus=inside)
gemellus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(gemin=twin, double, superior=above, inferior=below)
quadratus femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(quad=four-sided square)
actions at the shoulder (muscles acting on the arm (humerus)): flexion
pectoralis major (prime mover)<br></br>deltoid (prime mover) (anterior fibers)<br></br>coracobrachialis<br></br>biceps brachii
actions at the shoulder (muscles acting on the arm (humerus)): extension
latissimus dorsi (prime mover)<br></br>teres major<br></br>deltoid (prime mover) (posterior fibers)
actions at the shoulder (muscles acting on the arm (humerus)): abduction
deltoid (prime mover)<br></br>suprospinatus
actions at the shoulder (muscles acting on the arm (humerus)): adduction
pectoralis major (prime mover)<br></br>latissimus dorse (prime mover)<br></br>teres major<br></br>teres minor (weak)<br></br>coracobrachialis<br></br>triceps brachii
actions at the shoulder (muscles acting on the arm (humerus)): medial rotation
pectoralis major<br></br>latissimus dorsi<br></br>teres major<br></br>deltoid (anterior fibers)<br></br>subscapularis (prime mover)
actions at the shoulder (muscles acting on the arm (humerus)): lateral rotation
deltoid (posterior fibers)<br></br>infraspinatus (prime mover)<br></br>teres minor (prime mover)
actions on the forearm (muscles acting on the forearm): elbow flexion
biceps brachii (prime mover)<br></br>brachialis (prime mover)<br></br>pronator teres (weak)<br></br>brachioradialis
actions on the forearm (muscles acting on the forearm): elbow extension
triceps brachii (prime mover)<br></br>aconeus
actions on the forearm (muscles acting on the forearm): pronation
pronator teres<br></br>pronator quadratus (prime mover)
actions on the forearm (muscles acting on the forearm): supination
biceps brachii<br></br>supinator
actions at the wrist (muscles acting on the wrist and fingers): flexion
anterior compartment:<br></br>flexor carpi radialis (prime mover)<br></br>palmaris longus (weak)<br></br>flexor corpi ulnaris (prime mover)<br></br>flexor digitorum superficialis (prime mover)<br></br>flexor digitorum profundus
actions at the wrist (muscles acting on the wrist and fingers): extension
posterior compartment:<br></br>extensor carpi radialis longus and brevis<br></br>extensor digitorum (prime mover)<br></br>extensor carpi ulnaris
actions at the wrist (muscles acting on the wrist and fingers): abduction
anterior compartment:<br></br>flexor carpi radialis<br></br>posterior compartment:<br></br>extensor carpi radialis longus and brevis<br></br>abductor pollicis longus
actions at the wrist (muscles acting on the wrist and fingers): adduction
anterior compartment:<br></br>flexor carpi ulnaris<br></br>posterior compartment:<br></br>extensor carpi ulnaris
actions on the fingers (muscles acting on the wrist and fingers): flexion
anterior compartment:<br></br>flexor digitorum superficialis<br></br>flexor pollicis longus (thumb)<br></br>plexor digitorum profundus<br></br>posterior compartment:<br></br>(abductor pollicis longus) (abducts thumb)
actions on the fingers (muscles acting on the wrist and fingers): extension
posterior compartment:<br></br>extensor digitorum (and abducts)<br></br>(abductor pollicis longus) (abducts thumb)<br></br>extensor pollicis longus and brevis (thumb)<br></br>extensor indicis (index finger)
actions at the hip joint (muscles acting on the thigh and leg): flexion
anterior and medial muscles:<br></br>iliopsoas (prime mover)<br></br>tensor fasciae latae<br></br>sartorius<br></br>rectus femoris<br></br>adductor magnus<br></br>adductor longus<br></br>pectineus
actions at the hip joint (muscles acting on the thigh and leg): extension
posterior muscles:<br></br>gluteus maximus (prime mover)<br></br>biceps femoris (prime mover)<br></br>semitendinosus<br></br>semimembranosus<br></br>anterior and medial muscles:<br></br>adductor magnus
actions at the hip joint (muscles acting on the thigh and leg): abduction
posterior muscles:<br></br>gluteus maximus<br></br>gluteus medius (prime mover)<br></br>gluteus minimus<br></br>piriformis<br></br>anterior and medial muscles:<br></br>tensor fasciae latae<br></br>sartorius
actions at the hip joint (muscles acting on the thigh and leg): adduction
anterior and medial muscles:<br></br>adductor magnus<br></br>adductor longus<br></br>adductor brevis<br></br>gracilis<br></br>pectineus
actions at the hip joint (muscles acting on the thigh and leg): medial rotation
posterior muscles:<br></br>gluteus medius<br></br>gluteus minimus<br></br>anterior and medial muscles:<br></br>tensor fasciae latae<br></br>adductor magnus<br></br>adductor longus<br></br>adductor brevis<br></br>gracilis<br></br>pectineus
actions at the hip joint (muscles acting on the thigh and leg): lateral rotation
posterior muscles:<br></br>gluteus maximus<br></br>piriformis<br></br>obturator internu<br></br>obturator externus<br></br>gemelli<br></br>quadratus femoris<br></br>anterior and medial muscles:<br></br>sartorius
actions at the knee (muscles acting on the thigh and leg): flexion
posterior muscles:<br></br>biceps femoris (prime mover)<br></br>semitendinosus (prime mover)<br></br>semimembranosus (prime mover)<br></br>gastrocnemius<br></br>plantaris<br></br>popliteus (and rotates leg medially)<br></br>anterior and medial muscles:<br></br>sartorius<br></br>gracilis
actions at the knee (muscles acting on the thigh and leg): extension
anterior and medial muscles:<br></br>tensor fascae latae<br></br>rectus femoris (prime mover)<br></br>vastus muscles (prime mover)
actions at the ankle (muscles acting on the ankle and toes): plantar flexion
posterior compartment:<br></br>gastrocnemius (prime mover)<br></br>soleus (prime mover)<br></br>plantaris<br></br>flexor digitorum longus<br></br>flexor halucis longus<br></br>tibialis posterior<br></br>lateral compartment:<br></br>fibularis longus and brevis
actions at the ankle (muscles acting on the ankle and toes): dorsiflexion
anterior compartment:<br></br>tibialis anterior (prime mover)<br></br>extensor digitorum longus<br></br>fibularis tertius<br></br>extensor hallucis longus
actions at the ankle (muscles acting on the ankle and toes): inversion
posterior compartment:<br></br>flexor digitorumlongus<br></br>flexor hallucis longus<br></br>tibialis posterior (prime mover)<br></br>anterior compartment:<br></br>tibialis anterior<br></br>extensor hallucis longus (weak)
actions at the ankle (muscles acting on the ankle and toes): eversion
anterior compartment:<br></br>fibularis tertius<br></br>lateral compartment:<br></br>fibularis longus and brevis
actions on the toes (muscles acting on the ankle and toes): flexion
posterior compartment:<br></br>flexor digitorum longus (prime mover)<br></br>flexor hallucis longus (great toe)
actions on the toes (muscles acting on the ankle and toes): extension
anterior compartment:<br></br>extensor digitorum longus (prime mover)<br></br>extensor hallucis longus (great toe)
deep muscles of the thorax, breathing<br></br>(external=toward the outside, inter=between, cost=rib)
external intercostals
intercostal nerves
external intercostals: nerve supply
deep muscles of the thorax, breathing<br></br>(internal=toward the inside, deep)
internal intercostals
intercostal nerves
internal intercostals: nerve supply
deep muscles of the thorax, breathing<br></br>(dia=across, phragm=partition)
diaphragm
phrenic nerves
diaphragm: nerve supply
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>four paired flat muscles; function in support and protection of abdominal viscera; flexion and lateral flexion of vertebral column
muscles of the anterior and lateral abdominal wall
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(external=toward outside, oblique=running at an angle)
external oblique
intercostal nerves (T7-T12)
external oblique: nerve supply
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(internal=toward the inside, deep)
internal oblique
intercostal nerves (T7-T12) and L1
internal oblique: nerve supply
intercostal nerves (T7-T12) and L1
transversus abdominis: nerve supply
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(transverse=running straight across or transversely)
transversus abdominis
muscles of the abdominal wall, trunk movements and compression of abdominal viscera<br></br>muscles of the anterior and lateral abdominal wall<br></br>(rectus=straight, abdom=abdomen)
rectus abdominis
intercostal nerves (T6 or T7-T12)
rectus abdominis: nerve supply
S3, S4, and inferior rectal nerve (branch of pudendal nerve)
levator ani: nerve supply
S4 and S5
coccygeus: nerve supply
pudendal nerve
deep transverse perineal muscle: nerve supply
pudendal nerve
external urethral sphincter: nerve supply
pudendal nerve
ischiocavernosus: nerve supply
pudendal nerve
bulbospongiousus: nerve supply
pudendal nerve
superficial transverse perineal muscle: nerve supply
medial and lateral pectoral nerves (C6-C8)
pectoralis minor: nerve supply
long thoracic nerve (C5-C7)
serratus anterior: nerve supply
nerve to subclavius (C5 and C6)
subclavius: nerve supply
accessory nerve (cranial nerve XI); C3 and C4
trapezius: nerve supply
cervical spinal nerves and dorsal scapular nerve (C3-C5)
levator scapulae: nerve supply
dorsal scapular nerve (C4 and especially C5)
rhomboids: nerve supply
lateral and medial pectoral nerves (C5-C8, and T1)
pectoralis major: nerve supply
axillary nerve (C5 and C6)
deltoid: nerve supply
thoracodorsal nerve (C6-C8)
latissimus dorsi: nerve supply
lower subscapular nerve (C5-C7)
teres major: nerve supply
subscapular nerves (C5 and C6)
subscapularis: nerve supply
suprascapular nerve (C5 and C6)
supraspinatus: nerve supply
suprascapular nerve
infraspinatus: nerve supply
axillary nerve (C5 and C6)
teres minor: nerve supply
musculocutaneous nerve (C5-C7)
coracobrachialis: nerve supply
radial nerve (C6-C8)
triceps brachii: nerve supply
radial nerve
anconeus: nerve supply
radial nerve (C5 and C6)
brachioradialis: nerve supply
musculocutaneous nerve (C5 and C6)
biceps brachii: nerve supply
musculocutaneous nerve
brachialis: nerve supply
median nerve (C6 and C7)
pronator teres: nerve supply
median nerve (C6 and C7)
flexor carpi radialis: nerve supply
median nerve (C7 and C8)
palmaris longus: nerve supply
ulnar nerve (C8 and T1)
flexor carpi ulnaris: nerve supply
median nerve (C7, C8, and T1)
flexor digitorum superficialis: nerve supply
branch of median nerve (C7 and C8)
flexor pollicis longus: nerve supply
medial half by ulnar nerve; lateral half by mediannerve (C7 and C8)
flexor digitorum profundus: nerve supply
median nerve (C7 and C8)
pronator quadratus: nerve supply
radial nerve (C5 and C6)
extensor carpi radialis longus: nerve supply
radial nerve (posterior interosseous nerve, branch of radial nerve, C7 and C8)
extensor carpi radialis brevis: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor digitorum: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor carpi ulnaris: nerve supply
radial nerve (posterior interosseous nerve, C6 and C7)
supinator: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
abductor pollicis longus: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor pollicis brevis and longus: nerve supply
radial nerve (posterior interosseous nerve, C7 and C8)
extensor indicis: nerve supply
median nerve (C8 and T1)
abductor pollicis brevis: nerve supply
median (or occasionally ulnar) nerve (C8 and T1)
flexor pollicis brevis: nerve supply
median (or occasionally ulnar) nerve
opponens pollicis: nerve supply
ulnar nerve (C8 and T1)
adductor pollicis: nerve supply
ulnar nerve (C8 and T1)<br></br>tibial nerve (lateral plantar nerve, a branch of tibial nerve, S2, and S3)
abductor digiti minimi: nerve supply
ulnar nerve<br></br>tibial nerve (lateral plantar nerve, S2 and S3)
flexor digiti minimi brevis: nerve supply
ulnar nerve
opponens digiti minimi: nerve supply
median nerve (lateral two) and ulnar nerve (medial two) (C8 and T1)<br></br>tibial nerve (medial plantar nerve to first lumbrical and lateral plantar nerve to second through fourth lumbricals, L5-S2)
lumbricals: nerve supply
ulnar nerve
palmar interossei: nerve supply
ulnar nerve
dorsal interossei: nerve supply
femoral nerve (L2 and L3)
iliacus: nerve supply
ventral rami L1-L3
psoas major: nerve supply
superior gluteal nerve (L4-S1)
tensor fasciae latae: nerve supply
femoral nerve (L2 and L3)
sartorius: nerve supply
femoral nerve (L2-L4)
rectus femoris: nerve supply
femoral nerve
vastus lateralis: nerve supply
femoral nerve
vastus medialis: nerve supply
femoral nerve
vastus intermedius: nerve supply
femoral and sometimes obturator nerve (L2 and L3)
pectineus: nerve supply
obturator nerve (L2 and L3)
gracilis: nerve supply
obturator nerve (L2-L4)
adductor longus: nerve supply
obturator nerve (L2 and L3)
adductor brevis: nerve supply
obturator nerve and sciatic nerve (L2-L4)
adductor magnus: nerve supply
inferior gluteal nerve (L5-S2)
gluteus maximus: nerve supply
superior gluteal nerve (L4-S1)
gludeus medius: nerve supply
superior gluteal nerve (L4-S1)
gluteus minimus: nerve supply
sciatic nerve–tibial nerve to long head, common fibular nerve to short head (L5-S2)
biceps femoris: nerve supply
sciatic nerve–tibial nerve portion (L5-S2)
semitendinosus: nerve supply
sciatic nerve–tibial nerve portion (L5-S2)
semimembranosus: nerve supply
L4-S1
piriformis: nerve supply
obturator nerve (L3 and L4)
obturator externus: nerve supply
L5 and S1
obturator internus: nerve supply
L5 and S1
gemellus: nerve supply
L5 and S1
quadratus femoris: nerve supply
deep fibular nerve (L4 and L5)
tibialis anterior: nerve supply
deep fibular nerve (L5 and S1)
extensor digitorum longus: nerve supply
deep fibular nerve (L5 and S1)
fibularis (peroneus) tertius: nerve supply
deep fibular nerve (L5 and S1)
extensor hallucis longus: nerve supply
superficial fibular nerve (L5 and S1)
fibularis (peronius) longus: nerve supply
superficial fibular nerve (L5 and S1)
fibularis (peroneus) brevis: nerve supply
tibial nerve (S1 and S2)
gastrocnemius: nerve supply
tibial nerve (S1 and S2)
solius: nerve supply
tibial nerve (S1 and S2)
plantaris: nerve supply
tibial nerve (L4-S1)
popliteus: nerve supply
tibial nerve (L5-S2)
flexor digitorum longus: nerve supply
tibial nerve (L5-S2)
flexor hallucis longus: nerve supply
tibial nerve (L4 and L5)
tibialis posterior: nerve supply
deep fibular nerve (L5 and S1)
extensor digitorum brevis: nerve supply
tibial nerve (medial plantar nerve, a branch of tibial nerve, S1 and S2)
flexor digitorum brevis: nerve supply
tibial nerve (medial plantar nerve, S1 and S2)
abductor hallucis: nerve supply
tibial nerve (lateral plantar nerve, S2 and S3)
flexor accessorius (quadratus plantae): nerve supply
tibial nerve (medial plantar nerve, S1 and S2)
flexor hallucis brevis: nerve supply
tibial nerve (lateral plantar nerve, S2 and S3)
adductor hallucis: nerve supply
tibial nerve (lateral plantar nerve, S2 and S3)
plantar and dorsal interossei: nerve supply
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the pelvic diaphragm<br></br>(levator=raises, ani=anus)
levator ani
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the pelvic diaphragm<br></br>(coccy=coccyx)
coccygeus
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the urogenital diaphragm<br></br>(deep=far from surface, transverse=across, perine=near anus)
deep transverse perineal muscle
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the urogenital diaphragm<br></br>(sphin=squeeze)
external urethral sphincter
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the superficial perineal space<br></br>(ischi=hip, caverna=hollow chamber)
ischocavernosus
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the superficial perineal space<br></br>(bulbon=bulb, spongio=sponge
bulbospongiosus
muscles of the pelvic floor and perieum, support of abdominopelvic organs<br></br>muscles of the superficial perineal space<br></br>(superficial=closer to surface)
superficial transverse perineal muscle
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the anterior thorax<br></br>(pectus=chest, breast, minor=lesser)
pectoralis minor
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the anterior thorax<br></br>(serratus=saw)
serratus anterior
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the anterior thorax<br></br>(sub=under, beneath, clav=clavicle)
subclavius
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the posterior thorax<br></br>(trapezion=irregular four-sided figure)
trapezius
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the posterior thorax<br></br>(levator=raises)
levator scapulae
superficial muscles of the anterior and posterior thorax, movements of the scapula<br></br>muscles of the posterior thorax<br></br>major and minor<br></br>(rhomboid=diamond-shaped
rhomboids
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(pect=breast, chest, major=larger)
pectoralis major
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(delta=triangular)
deltoid
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(latissimus=widest, dorsi=back)
latissimus dorsi
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(teres=round, major=larger)
teres major
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(sub=under, scapular=scapula)
subscapularis
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(supra=above, over, spin=spine)
supraspinatus
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(infro=below)
infraspinatus
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(teres=round, minor=lesser)
teres minor
muscles crossing the shoulder joint, movements of the arm (humerous)<br></br>(coraco=coracoid, brachi=arm)
coracobrachialis
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>posterior muscles<br></br>(triceps=three heads, brachi=arm)
triceps brachii
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>posterior muscles<br></br>(ancon=elbow)
anconeus
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>posterior muscles<br></br>muscles of the forearm, movements of the wrist, hand, and fingers<br></br>superficial muscles of posterior compartment<br></br>(radi=radius, ray)
brachioradialis
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>anterior muscles<br></br>(biceps=two heads)
biceps brachii
muscles crossing the elbow joint, flexion and extension of the forearm<br></br>anterior muscles
brachialis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(pronation=turning plam posteriorly, or down, teres=round)
pronator teres
muscles of the forearm, movements of the rist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(flex=decrease angle between two bones, carpi=wrist, radi=radius)
flexor carpi radialis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(palma=palm, longus=long)
palmaris longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(ulnar=ulna)
flexor carpi ulnaris
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>superficial muscles of anterior compartment<br></br>(digit=finger, toe, superficial=close to surface)
flexor digitorum superficialis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>of these eight muscles of the anterior fascial compartment, most arise from a common flexor tendon attached to the medial epicondyle of the humerus and have additional origins as well. most of the tendons of insertion of these flexors are held in place at the wrist by a thickening of deep fascia called the flexor retinaculum
anterior muscles (forearm)
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>deep muscles of anterior compartment<br></br>(pollex=thumb)
flexor pollicis longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>deep muscles of anterior compartment<br></br>(profund=deep)
flexor digitorum profundus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>anterior muscles<br></br>deep muscles of anterior compartment<br></br>(quad=square, four-sided
pronator quadratus
“muscles of the forearm, movements of the wrist, hand, and fingers<br></br>these muscles of the posterior fascial compartment are all innervated by the radial nerve or its branches. more than half of the posterior compartment muscles aris from a common extensor origin tendon attached to the posterior surface of the lateral epicondyle of the humerus and adjacent fascia. the extensor tendons are held in place at the posterior aspect of the wrist by the extensor retinaculum, which prevents ““bowstringing”” of these tendons when the wrist is hyperextended. the extensor muscles of the fingers end in a broad hood over the dorsal side of the digits, the extensor expansion”
posterior muscles (forearm)
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of posterior compartment<br></br>(extend=increase angle between two bones)
extensor carpi radialis longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of posterior compartment<br></br>(brevis=short)
extensor carpi radialis brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of posterior compartment
extensor digitorum
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>superficial muscles of the posterior compartment
extensor carpi ulnaris
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of posterior compartment<br></br>(supination=turning palm anteriorly or upward)
supinator
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of the posterior compartment<br></br>(abduct=movement away from median plane)
abductor pollicis longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of posterior compartment
extensor pollicis brevis and longus
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>posterior muscles<br></br>deep muscles of posterior compartment<br></br>(indicis=index finger)
extensor indicis
intrinsic muscles of the mand, fine movements of the fingers<br></br>thenar muscles in ball of thumb<br></br>(pollex=thumb)
abductor pollicis brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>thenar muscles in ball of thumb
flexor pollicis brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>thenar muscles in ball of thumb<br></br>(opponens=opposition)
opponens pollicis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>thenar muscles in ball of thumb
adductor pollicis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>hypothenar muscles in ball of little finger<br></br>(digiti minimi=little finger)
abductor digiti minimi
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>hypothenar muscles in ball of little finger<br></br>intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>third layer
flexor digiti minimi brevis
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>hypothenar muscles in ball of little finger
opponens digiti minimi
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>midpalmar muscles<br></br>intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>second layer<br></br>(lumbric=earthworm)
lumbricals
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>midpalmar muscles<br></br>(interossei=between bones)
palmar interossei
muscles of the forearm, movements of the wrist, hand, and fingers<br></br>midpalmar muscles
dorsal interossei
“muscles of the leg, movements of the ankle and toes<br></br>all muscles of the anterior compartment of the leg are dorsiflexors of the ankle and have a common innervation, the deep fibular nerve. paralysis of the anterior muscle group causes foot drop, which requires that one lift the leg unusually high during walking to prevent tripping over one’s toes. ““shin splints”” is a painful inflammatory condition of the muscles of the anterior compartment”
muscles of the anterior compartment of leg
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(tibial=tibia, anterior=toward the front)
tibialis anterior
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(extensor=increases angle at a joint, digit=finger or toe, longus=long)
extensor digitorum longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(perone=fibula, tertius=third)
fibularis (peroneus) tertius
muscles of the leg, movements of the ankle and toes<br></br>muscles of the anterior compartment of leg<br></br>(hallux=great toe)
extensor hallucis longus
muscles of the leg, movements of the ankle and toes<br></br>these muscles have a common innervation, the superficial fibular nerve. besides plantar flexion and foot eversion, these muscles stabilize the lateral ankle and lateral logitudinal arch of the foot
muscles of the lateral compartment of leg
muscles of the leg, movements of the ankle and toes<br></br>muscles of the lateral compartment of leg
fibularis (peroneus) longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the lateral compartment of leg<br></br>(brevis=short)
fibularis (peroneus) brevis
muscles of the leg, movements of the ankle and toes<br></br>the muscles of the posterior compartment of the leg have a common innervation, the tibial nerve. they act as synergists to plantar flex the ankle
muscles of the posterior compartment of leg
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>refers to muscle pair (gastrocnemius and soleus) that shapes the posterior calf and inserts via a common tendon into the calcaneus of the heel; this calcaneal tendon (Achilles tendon) is the largest tendon in the body; prime movers of plantar flexion
triceps surae
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>triceps surae<br></br>(gaster=belly, kneme=leg)
gastrocnemius
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartmetn of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>triceps surae<br></br>(soleus=fish)
soleus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>superficial muscles of the posterior compartment of leg<br></br>(planta=sole of foot)
plantaris
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posterior compartment of leg<br></br>deep muscles of the posterior compartment of leg<br></br>(poplit=back of knee)
popliteus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posteior compartment of leg<br></br>deep muscles of the posterior compartment of leg<br></br>(flexor=decrease angle at a joint)
flexor digitorum longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posteior compartment of leg<br></br>deep muscles of the posterior compartment of leg
flexor hallucis longus
muscles of the leg, movements of the ankle and toes<br></br>muscles of the posteior compartment of leg<br></br>deep muscles of the posterior compartment of leg<br></br>(posterior=toward the back)
tibialis posterior
intrinsic muscles of the foot, toe movement and foot support<br></br>muscle on dorsum of foot
extensor digitorum brevis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>first layer (most superficial)
flexor digitorum brevis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>first layer (most superficial)<br></br>(hallux=the big toe)
abductor hallucis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>first layer (most superficial)
obductor digiti minimi
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>second layer
flexor accessorius
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>third layer
flexor hallucis brevis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>third layer
adductor hallucis
intrinsic muscles of the foot, toe movement and foot support<br></br>muscles on sole of foot<br></br>fourth layer (deepest)
plantar and dorsal interossei
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>iliopsoas is a composite of two closely related muscles (iliacus and psoas major) whose fibers pass under the inguinal ligament to insert via a common tendon on the femur
iliopsoas
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>(iliac=ilium)
iliacus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>(psoa=loin muscle, major=larger)
psoas major
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>origin on the pelvis or vertebrae<br></br>(tensor=to make tense, fascia=band, lata=wide)
tensor fasciae latae
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(sartor=tailor)
sartorius
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>hos four separate heads (quadriceps=four heads) that form the flest of front and sides of thigh. these heads (rectus femoris, and lateral, medial, and intermediate vastus muscles) have a common insertion tendon, the quadriceps tendon, which inserts into the patella and then via the patellar ligament into tebial tuberosity. the quadriceps is a powerful leg extensor used in climbing, jumping, running, and rising from seated position. the group is innervated by femoral nerve. the tone of quadriceps is important in strengthening the knee joint
quadriceps femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(rectus=straight, femoris=femur)
rectus femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartmetn of thigh<br></br>(vastus=large, lateralis=lateral)
vastus lateralis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(medialis=medial)
vastus medialis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the anterior compartment of thigh<br></br>(intermedius=intermediate)
vastus intermedius
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(pecten=comb)
pectineus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(gracilis=slender)
gracilis
“muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>this large muscle mass consists of three muscles (longus, brevis, and magnus) forming medial aspect of thigh. they arise from inferior part of pelvis and insert at various levels on femur. all are used in movements taht press thights together, as when astride a horse; important in pelvic tilting movements that occur during walking and in fixing the hip when the knee is flexed and the feet is off the ground. the entire group is innervated by obturate nerve. strain or stretching of a muscle in this group is called a ““pulled groin”””
adductors
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(longus=long)
adductor longus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(brevis=short)
adductor brevis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>anterior and medial muscles<br></br>muscles of the medial compartment of thigh<br></br>(adduct=move toward midline, magnus=large)
adductor magnus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>gluteal muscles–origin on pelvis or sacrum<br></br>(glutos=buttock, maximus=largest)
gluteus maximus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>gluteal mmuscles–origin on pelvis or sacrum<br></br>(medius=middle)
gluteus medius
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>gluteal muscles–origin on pelvis or sacrum<br></br>(minimus=smallest)
gluteus minimus
“muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>the hamstrings are fleshy muscles of the posterior thigh (biceps femoris, semitendinosus, and semimembranosus). they cross both the hip and knee joints and are prime movers of thigh extension and leg flexion. the group has a common origin from the ischial tuberosity and is innervated by sciatic nerve (which is composed of two nerves, the tibila nad common fibular nerves, wrapped by a connective tissue sheath). the name fof this muscle group comes from old butchers’ practice of using the tendons to hang hams for smoking”
hamstrings
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>(biceps=two heads)
biceps femoris
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>(semi=half, tendinosus=tendon)
semitendinosus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>muscles of the posterior compartment of thigh<br></br>(membranosus=membrane)
semimembranosus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(piri=pear, forma=shape)
piriformis
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(obturator=obturator foramen, externus=outside)
obturator externus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(internus=inside)
obturator inturnus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(gemin=twin, double, superior=above, inferior=below)
gemellus
muscles crossing the hip and knee joints, movements of the thigh and leg<br></br>posterior muscles<br></br>lateral rotators<br></br>(quad=four-sided square)
quadratus femoris
pectoralis major (prime mover)<br></br>deltoid (prime mover) (anterior fibers)<br></br>coracobrachialis<br></br>biceps brachii
actions at the shoulder (muscles acting on the arm (humerus)): flexion
latissimus dorsi (prime mover)<br></br>teres major<br></br>deltoid (prime mover) (posterior fibers)
actions at the shoulder (muscles acting on the arm (humerus)): extension
deltoid (prime mover)<br></br>suprospinatus
actions at the shoulder (muscles acting on the arm (humerus)): abduction
pectoralis major (prime mover)<br></br>latissimus dorse (prime mover)<br></br>teres major<br></br>teres minor (weak)<br></br>coracobrachialis<br></br>triceps brachii
actions at the shoulder (muscles acting on the arm (humerus)): adduction
pectoralis major<br></br>latissimus dorsi<br></br>teres major<br></br>deltoid (anterior fibers)<br></br>subscapularis (prime mover)
actions at the shoulder (muscles acting on the arm (humerus)): medial rotation
deltoid (posterior fibers)<br></br>infraspinatus (prime mover)<br></br>teres minor (prime mover)
actions at the shoulder (muscles acting on the arm (humerus)): lateral rotation
biceps brachii (prime mover)<br></br>brachialis (prime mover)<br></br>pronator teres (weak)<br></br>brachioradialis
actions on the forearm (muscles acting on the forearm): elbow flexion
triceps brachii (prime mover)<br></br>aconeus
actions on the forearm (muscles acting on the forearm): elbow extension
pronator teres<br></br>pronator quadratus (prime mover)
actions on the forearm (muscles acting on the forearm): pronation
biceps brachii<br></br>supinator
actions on the forearm (muscles acting on the forearm): supination
anterior compartment:<br></br>flexor carpi radialis (prime mover)<br></br>palmaris longus (weak)<br></br>flexor corpi ulnaris (prime mover)<br></br>flexor digitorum superficialis (prime mover)<br></br>flexor digitorum profundus
actions at the wrist (muscles acting on the wrist and fingers): flexion
posterior compartment:<br></br>extensor carpi radialis longus and brevis<br></br>extensor digitorum (prime mover)<br></br>extensor carpi ulnaris
actions at the wrist (muscles acting on the wrist and fingers): extension
anterior compartment:<br></br>flexor carpi radialis<br></br>posterior compartment:<br></br>extensor carpi radialis longus and brevis<br></br>abductor pollicis longus
actions at the wrist (muscles acting on the wrist and fingers): abduction
anterior compartment:<br></br>flexor carpi ulnaris<br></br>posterior compartment:<br></br>extensor carpi ulnaris
actions at the wrist (muscles acting on the wrist and fingers): adduction
anterior compartment:<br></br>flexor digitorum superficialis<br></br>flexor pollicis longus (thumb)<br></br>plexor digitorum profundus<br></br>posterior compartment:<br></br>(abductor pollicis longus) (abducts thumb)
actions on the fingers (muscles acting on the wrist and fingers): flexion
posterior compartment:<br></br>extensor digitorum (and abducts)<br></br>(abductor pollicis longus) (abducts thumb)<br></br>extensor pollicis longus and brevis (thumb)<br></br>extensor indicis (index finger)
actions on the fingers (muscles acting on the wrist and fingers): extension
anterior and medial muscles:<br></br>iliopsoas (prime mover)<br></br>tensor fasciae latae<br></br>sartorius<br></br>rectus femoris<br></br>adductor magnus<br></br>adductor longus<br></br>pectineus
actions at the hip joint (muscles acting on the thigh and leg): flexion
posterior muscles:<br></br>gluteus maximus (prime mover)<br></br>biceps femoris (prime mover)<br></br>semitendinosus<br></br>semimembranosus<br></br>anterior and medial muscles:<br></br>adductor magnus
actions at the hip joint (muscles acting on the thigh and leg): extension
posterior muscles:<br></br>gluteus maximus<br></br>gluteus medius (prime mover)<br></br>gluteus minimus<br></br>piriformis<br></br>anterior and medial muscles:<br></br>tensor fasciae latae<br></br>sartorius
actions at the hip joint (muscles acting on the thigh and leg): abduction
anterior and medial muscles:<br></br>adductor magnus<br></br>adductor longus<br></br>adductor brevis<br></br>gracilis<br></br>pectineus
actions at the hip joint (muscles acting on the thigh and leg): adduction
posterior muscles:<br></br>gluteus medius<br></br>gluteus minimus<br></br>anterior and medial muscles:<br></br>tensor fasciae latae<br></br>adductor magnus<br></br>adductor longus<br></br>adductor brevis<br></br>gracilis<br></br>pectineus
actions at the hip joint (muscles acting on the thigh and leg): medial rotation
posterior muscles:<br></br>gluteus maximus<br></br>piriformis<br></br>obturator internu<br></br>obturator externus<br></br>gemelli<br></br>quadratus femoris<br></br>anterior and medial muscles:<br></br>sartorius
actions at the hip joint (muscles acting on the thigh and leg): lateral rotation
posterior muscles:<br></br>biceps femoris (prime mover)<br></br>semitendinosus (prime mover)<br></br>semimembranosus (prime mover)<br></br>gastrocnemius<br></br>plantaris<br></br>popliteus (and rotates leg medially)<br></br>anterior and medial muscles:<br></br>sartorius<br></br>gracilis
actions at the knee (muscles acting on the thigh and leg): flexion
anterior and medial muscles:<br></br>tensor fascae latae<br></br>rectus femoris (prime mover)<br></br>vastus muscles (prime mover)
actions at the knee (muscles acting on the thigh and leg): extension
posterior compartment:<br></br>gastrocnemius (prime mover)<br></br>soleus (prime mover)<br></br>plantaris<br></br>flexor digitorum longus<br></br>flexor halucis longus<br></br>tibialis posterior<br></br>lateral compartment:<br></br>fibularis longus and brevis
actions at the ankle (muscles acting on the ankle and toes): plantar flexion
anterior compartment:<br></br>tibialis anterior (prime mover)<br></br>extensor digitorum longus<br></br>fibularis tertius<br></br>extensor hallucis longus
actions at the ankle (muscles acting on the ankle and toes): dorsiflexion
posterior compartment:<br></br>flexor digitorumlongus<br></br>flexor hallucis longus<br></br>tibialis posterior (prime mover)<br></br>anterior compartment:<br></br>tibialis anterior<br></br>extensor hallucis longus (weak)
actions at the ankle (muscles acting on the ankle and toes): inversion
anterior compartment:<br></br>fibularis tertius<br></br>lateral compartment:<br></br>fibularis longus and brevis
actions at the ankle (muscles acting on the ankle and toes): eversion
posterior compartment:<br></br>flexor digitorum longus (prime mover)<br></br>flexor hallucis longus (great toe)
actions on the toes (muscles acting on the ankle and toes): flexion
anterior compartment:<br></br>extensor digitorum longus (prime mover)<br></br>extensor hallucis longus (great toe)
actions on the toes (muscles acting on the ankle and toes): extension