Muscle LIST Flashcards
Trapezius
Shoulder
Trapezius Origin
Vertebrae occipital (spinous process)
Trapezius Insertion
Scapula (spine) clavicle
Trapezius Function
Stabilizes scapula medially and extends head
Deltoid
Shoulder
Deltoid origin
Clavicle and Scapular spine
Deltoid insertion
humerus (deltoid tuberosity)
Deltoid function
Abducts and rotates arm
Pectoralis Major
Shoulder
Pectoralis major origin
sternum and clavicle
pectoralis major insertion
humerus (greater tubercle)
pectoralis major function
arm flexion and adduction
pectoralis minor
shoulder
pectoralis minor origin
ribs
pectoralis minor insertion
scapula (coracoid prc.)
pectoralis minor function
depresses scapula
latissimus dorsi
shoulder
latissimus dorsi origin
vertebrae (spinous prc.)
latissimus dorsi insertion
humerus (intertubercular groove)
humerus function
extends and adducts arm
supraspinatus
shoulder
supraspinatus origin
scapula (supraspinatus fossa)
supraspinatus insertion
humerus (greater tubercle)
supraspinatus function
abduct arm, stabilize shoulder superiorly
subscapularis
shoulder
subscapularis origin
scapula (subscapular fossa)
subscapularis insertion
humerus (lesser tubercle)
subscapularis function
rotates arm medially, stabilizes shoulder anteriorly
infraspinatus
shoulder
infraspinatus origin
scapula (infaspinatus fossa)
infraspinatus insertion
humerus (greater tubercle)
infraspinatus function
rotates arm laterally, stabilizes shoulder posteriorly
teres minor
shoulder
teres minor origin
scapula (lateral border)
teres minor insertion
humerus (greater tubercle)
teres minor function
rotates arm laterally, stabilizes shoulder posteriorly
teres major
shoulder
teres major origin
scapula (inferior angle)
teres major insertion
humerus (lesser tubercle)
teres major function
extends and adducts arm
serratus anterior
shoulder
serratus anterior origin
ribs
serratus anterior insertion
scapula (medial border)
serratus anterior function
protracts and stabilizes scapula
Biceps brachii
arm
Biceps brachii origin
scapula (coracoid process, glenoid)
Biceps brachii insertion
radial tuberosity
Biceps brachii function
flexes forearm
triceps brachii
arm
triceps brachii origin
scapula and humerus
triceps brachii insertion
ulna (olecranon process)
triceps brachii function
extends forearm
coracobrachialis
arm
coracobrachialis origin
scapula (coracoid process)
coracobrachialis insertion
humerus
coracobrachialis function
flexes and adducts arm
Brachialis
arm
brachialis origin
humerus
brachialis insertion
ulna (coronoid process)
brachialis function
flexes forearm
brachioradialis
arm
brachioradialis origin
humerus
brachioradialis insertion
distal radius
brachioradialis function
flexes forearm
supinator
forearm
supinator origin
humerus/ ulna
supinator insertion
radius
supinator function
supinates forearm
pronator teres
forearm
pronator teres origin
humerus/ ulna (med. epi., coro. proc.)
pronator teres insertion
radius
pronator teres function
pronation
flexor carpi radialis
forearm
flexor carpi radialis origin
humerus (med. epicondyle)
flexor carpi radialis insertion
metacarpals (2nd and 3rd)
flexor carpi radialis function
hand flexion and abduction
Palmarus longus
forearm
palmarus longus origin
humerus (med. epi.)
palmarus longus insertion
palmar aponeurosis
palmaris longus function
hand flexion
flexor carpi ulnarus
forearm
flexor carpi ulnarus origin
humerus/ ulna (md. epi., olecranon process)
flexor carpi ulnarus insertion
carpal/ metacarpal (5th)
flexor carpi ulnarus function
hand flexion and adduction
flexor digitorum superficicalis
forearm
flexor digitorum superficicalis origin
humerus/ ulna/ radius (med. epi)
flexor digitorum superficicalis insertion
middle phalanges 2-5
flexor digitorum superficicalis function
flexes proximal and middle phalanges, flexes hand
flexor digitorum profundus
forearm
flexor digitorum profundus origin
ulna
flexor digitorum profundus insertion
distal phalanges 2-5
flexor digitorum profundus function
flexes phalanges, flexes hand
extensor carpi radialis longus
forearm
extensor carpi radialis longus origin
humerus (lat. supercondylar ridge)
extensor carpi radialis longus insertion
2nd metacarpal
extensor carpi radialis longus funtion
extends and abducts hand
extensor carpi radialis brevis
forearm
extensor carpi radialis brevis origin
humerus (lat. epicondyle)
extensor carpi radialis brevis insertion
3rd metacarpal
extensor carpi radialis brevis funtion
extends and abducts hand
extensor digitorum
forearm
extensor digitorum origin
humerus (lat. epicondyle)
extensor digitorum insertion
phalanges (distal 2-5)
extensor digitorum function
extends phalanges and hands
extensor carpi ulnaris
forearm
extensor carpi ulnaris origin
humerus (lat. epicondyle)
extensor carpi ulnaris insertion
5th metacarpal
extendor carpi ulnaris function
extends and adducts hands
abductor pollices longus
forearm
abductor pollices longus origin
ulna/ radius
abductor pollies longus insertion
1st metacarpal
abductor pollices longus funtion
abducts thumb
extensor pollices brevis
forearm
extensor pollices brevis origin
radius/ ulna
extensor pollices brevis insertion
thumb phalanges
extensor pollices Brevis function
extends thumb
Iliopoas: iliacus and psoas major
hip/ thigh
Iliopoas: iliacus and psoas major origin
iliac and vertebrae
Iliopoas: iliacus and psoas major insertion
femur -lesser trochanter
Iliopoas: iliacus and psoas major function
thigh flexion
tensor fasciae lata
hip/ thigh
tensor fasciae lata origin
ASIS and iliac crest
tensor fasciae lata insertion
iliotibial band
tensor fasciae lata function
flexes and abducts thigh
gluteus maximus
hip/ thigh
gluteus maximus origin
ilium/ sacrum
gluteus maximus insertion
femur (gluteal tuberosity)
gluteus maximus function
forced extension of the thigh
gluteus medius
hip/ thigh
gluteus medius origin
ilium
gluteus medius insertion
femur (greater trocanter)
gluteus medius function
abducts and rotates thigh
piriformus
hip/thigh
piriformus origin
sacrum
piriformus inserion
femur (greater trocanter)
piriformus function
abducts and laterally rotates thigh
sartorius
hip/thigh
sartorius origin
ilium (ASIS)
sartorius insertion
tibia
sartorius function
flexes thigh and leg
gracilis
adductor hip/thigh
gracilis origin
pubis
gracilis insertion
tibia
gracilis function
adducts thigh and flexes leg
pectinius
adductor hip/thigh
pectinius origin
pubis
pectinius insertion
femur (lsr. trocanter)
pectinius function
adducts leg and flexes thigh
adductor longus
adducts hip/ thigh
adductor longus origin
pubis
adductor longus insertion
femur (l. aspera)
adductor longus function
adducts and flexes thigh
adductor magnus
adducts hip/ thigh
adductor magnus origin
ischium/ pubis
adductor magnus insertion
femur (l. aspera, ad. tbrcle)
adductor magnus function
adducts and flexes thigh
rectus femoris
quadriceps
rectus femoris origin
ilium (AIIS)
rectus femoris insertion
tibia via patella
rectus femoris function
flexes thigh and extends leg
Vastus lateralis, intermediate, and medialis
quadricepts
Vastus lateralis, intermediate, and medialis origin
femur
Vastus lateralis, intermediate, and medialis insertion
tibia via patella
Vastus lateralis, intermediate, and medialis function
extends leg
biceps femoris
hamstrings
biceps femoris origin
isch. tub and femur
biceps femoris insertion
tib and fib
biceps femoris function
extends thigh and flexes leg
Semitendinosis
hamstrings
Semitendinosis origin
ischial tuberosity
Semitendinosis insertion
tibia
Semitendinosis function
extends thigh and flexes leg
semimembranosus
hamstrings
semimembranosus origin
ischial tuberosity
semimembranosus insertion
tibia
semimembranosus function
extends thigh and flexes leg
gastrocnemius
leg
gastrocnemius origin
femur (condyles)
gastrocnemius insertion
calcaneus
gastrocnemius function
flexes knee and plantar flexes foot
soleus
leg
soleus origin
tib and fib
soleus insertion
calcaneus
soleus function
plantar flexes foot
popliteus
leg
popliteus origin
femur (lat. condyle)
popliteus insertion
tibia
popliteus function
flexes/ unlocks extended knee
flexor digitorum longus
leg
flexor digitorum longus origin
tibia
flexor digitorum longus insertion
distal phalanges 2-5
flexor digitorum longus function
flexes foot, plantar flexes foot
flexor hallucis longus
leg
flexor hallucis longus origin
fibula
flexor hallucis longus insertion
distal phalanx of big toe (hallux)
flexor hallucis longus function
flex big toe; plantar flexes foot
tibialis posterior
leg
flexor hallucis longus origin
tibia and fibula
tibialis posterior
leg
tibialis posterior origin
tib and fib
tibialis posterior insertion
tarsals and metatarsals 2-4
tibialis posterior function
plantar flexes and inverts foot
fibularis longus (peroneus longus)
leg
fibularis longus (peroneus longus) origin
fibula
fibularis longus (peroneus longus) insertion
1st metatarsal
fibularis longus (peroneus longus) function
plantar flexes and everts foot
fibularis brevis (peroneus brevis)
leg
fibularis brevis (peroneus brevis) origin
fibula
fibularis brevis (peroneus brevis) insertion
5th metatarsal
fibularis brevis (peroneus brevis) function
plantar flexes and everts foot
tibialis anterior
leg
tibialis anterior origin
tibia
tibialis anterior insertion
tarsals and 1st metatarsal
tibialis anterior function
dorsiflexes and inverts foot
extensor digitorum longus
leg
extensor digitorum longus origin
tibia and fibula
extensor digitorum longus insertion
phalanges (mid/dist 2-5)
extensor digitorum longus function
extends toes and dorsiflexes foot
extensor hallucis longus
leg
extensor hallucis longus origin
fibula
extensor hallucis longus insertion
distal phalanx of great toe
extensor hallucis longus function
extends big toe and dorsiflexes foot
levatator scapulae
neck
levatator scapulae origin
cervical vertebrae
levatator scapulae insertion
scapula
levatator scapulae function
elevate scapula, rotates neck
scalenes
neck
scalenes origin
cervical vertebrae
scalenes insertion
ribs
scalenes function
head flexion and rotation
sternocleidomastoid
neck
sternocleidomastoid origin
sternum and clavicle
sternocleidomastoid insertion
mastoid process
sternocleidomastoid function
head flexion and rotation
platysma
neck
platysma origin
fascia covering pec major and deltoid
platysma insertion
mandible and skin
platysma function
depresses lips and opens jaw
frontalis
head
frontalis origin
galea aponeurotica
frontalis insertion
eyebrows
frontalis function
raise eyebrows, pulls scalp anterior
occipitalis
head
occipitalis origin
occipital and temporal
occipitalis insertion
galea aponeurotica
occipitalis function
pulls scalp posteriorly
temporalis
head
temporalis origin
squamous reg. on temporal
temporalis insertion
coronoid prc. on mandible
temporalis function
closes jaw
masseter
head
masseter orgin
zygomatic arch
masseter insertion
mandibular ramus and angle
masseter function
closes jaw
pterygoids (lat and medial)
head
pterygoids (lat and medial) origin
sphenoid
pterygoids (lat and medial) insertion
mandible
pterygoids (lat and medial) function
protraction/ retraction/ elevation/ lateral excursion of the mandible
orbicularis oculi
head
orbicularis oculi orgin
frontal and maxillary
orbicularis oculi insertion
eyelids
orbicularis oculi function
closes eye
orbicularis oris
head
orbicularis oris origin
circular around mouth
orbicularis oris insertion
circular around mouth
orbicularis oris function
close mouth, purse lips
risorius
head
risorius origin
masseter fascia
risorius insertion
skin at angle of mouth
risorius function
abducts corner of mouth
mentalis
head
mentalis origin
mandible
mentalis insertion
skin of lower lip
mentalis function
protrudes lower lip (pout)
buccinator
head
buccinator origin
maxilla and mandible
buccinator insertion
orbicularis oris
buccinator function
compresses cheek
zygomaticus (major and minor)
head
zygomaticus (major and minor) origin
zygomatic
zygomaticus (major and minor) insertion
mouth
zygomaticus (major and minor) function
smile
external oblique
abdomen
external oblique origin
ribs
external oblique insertion
linea abla
external oblique function
flexes and rotates trunk and compresses abdomen
internal oblique
abdomen
internal oblique origin
lumbar fasica
internal oblique insertion
linea alba
internal oblique function
flexes and rotates trunk and compresses abdomen
transverse abdominus
abdomen
transverse abdominus origin
lumbar fascia and ribs
transverse abdominus insertion
linea alba
transverse abdominus funtion
compresses abdomen and rotates trunk
rectus abdominus
abdomen
rectus abdominus origin
pubis
rectus abdominus insertion
xiphoid and costal cartillage
rectus abdominus function
flexes trunk and compresses abdomen
external intercostals
chest
external intercostals origin
ribs
external intercostals insertion
ribs
external intercostals function
elevates ribs, expands thorax (inspiration)
internal intercostals
chest
intercostals origin
ribs
intercostals insertion
ribs
intercostals function
depresses ribs, contracts thorax (expiration)
diaphragm
chest
diaphragm origin
ribs, sternum, vertebrae
diaphragm insertion
central tendon
diaphragm function
inspiration
