OIIA Quiz Flashcards
sternocleidomastoid origin
manubrium and clavicle
sternocleidomastoid insertion
mastoid process
sternocleidomastoid innervation
accessory nerve and cervical plexus
sternocleidomastoid action
tilt head same side, rotate opposite. flex neck, raise sternum, assist in forced inspiration.
scalene muscles origin
cervical vertebrae
scalene muscles insertion
1st and 2nd ribs
scalene innervation
C3-C7
scalene muscles action
elevation of ribs 1 & 2
Levator scapulae origin
C1-C4
levator scapulae insertion
medial border of scapula
levator scapulae innervation
C3, C4 and dorsal scapular nerve
levator scapulae action
elevates scapula & tilts glenoid inferiorly
semispinalis origin
C4-C7 and T1-T7
semispinalis insertion
occipital bone
semispinalis innervation
greater occipital nerve
semispinalis action
head extension
longissimus capitis origin
C4-C7 and T1-T5
longissimus capitis insertion
mastoid process
longissimus capitis innervation
spinal nerve
longissimus capitis action
flex head and neck to same side and extend vertebral column
splenius capitis origin
C7-T6 and ligamentum nuchae
splenius capitis insertion
mastoid process
splenius capitis innervation
C3, C4
splenius capitis action
extend, rotate, and laterally flex the head
pectoralis major origin
clavicle and sternum
pectoralis major insertion
intertubercular groove of humerus
pectoralis major innervation
lateral and medial pectoral nerves
pectoralis major action
flex humerus
extend humerus
adducts and medially rotates humerus
draws scapula anteriorly and inferiorly
pectoralis minor origin
3rd-5th ribs
pectoralis minor insertion
coracoid process
pectoralis minor innervation
medial pectoral nerve
pectoralis minor action
stabilizes scapula
draws scapula anteriorly and inferiorly
serratus anterior origin
ribs 1-8
serratus anterior insertion
scapula
serratus anterior innervation
long thoracic nerve
serratus anterior action
protract and stabilize scapula
assist in upward rotation
levatores costarum origin
C7-T12
levatores costarum insertion
ribs
levatores costarum innervation
dorsal rami of C8-T11
levatores costarum action
assist in elevation of the thoracic rib cage
serratus posterior inferior origin
T11-L3
serratus posterior inferior insertion
ribs 9-12
serratus posterior inferior innervation
intercostal nerves
serratus posterior inferior action
depress the lower ribs
aids in expiration
serratus posterior superior origin
nuchal ligament
C7-T3
serratus posterior superior insertion
ribs 2-5
serratus posterior superior innervation
2nd-5th intercostal nerves
serratus posterior superior action
elevate ribs
aids in inspiration
latissimus dorsi origin
T6-T12
thoracolumbar fascia
iliac crest
inferior 3-4 ribs
latissimus dorsi insertion
intertubercular groove of humerus
latissimus dorsi innervation
thoracodorsal nerve
latissimus dorsi action
pulls forelimb dorsally and caudally
multifidus origin
sacrum
erector spinae aponeurosis
PSIS
iliac crest
multifidus insertion
spinous process
multifidus innervation
posterior branch of spinal nerve
multifidus action
stabilize vertebrae in local movements
trapezius origin
external occipital protuberance
nuchal ligament
superior nuchal line
C7-T12
trapezius insertion
clavicle
acromion
spine of scapula
trapezius innervation
CN XI
trapezius action
retraction and elevation of scapula
rhomboid major origin
T2-T5
rhomboid major insertion
medial border of scapula
rhomboid major innervation
dorsal scapular nerve
rhomboid major action
retract scapula and rotate it to depress glenoid cavity
rhomboid minor origin
C7-T1
rhomboid minor insertion
medial border of scapula
rhomboid minor innervation
dorsal scapular nerve
rhomboid minor action
retract scapula and rotate it to depress the glenoid cavity
deltoid origin
clavicle, acromion, spine of scapula
deltoid insertion
deltoid tuberosity of humerus
deltoid innervation
axillary nerve
deltoid action
shoulder abduction, flexion, and extension
teres major origin
scapula
teres major insertion
intertubercular sulcus of humerus
teres major innervation
lower subscapular nerve
teres major action
internal rotation of humerus
supraspinatus origin
supraspinatus fossa of scapula
supraspinatus insertion
greater tubercle of humerus
supraspinatus innervation
suprascapular nerve
supraspinatus action
abduction of arm and stabilize humerus
infraspinatus origin
infraspinatus fossa of scapula
infraspinatus insertion
greater tubercle of humerus
infraspinatus innervation
suprascapular nerve
infraspinatus action
lateral rotation of arm and adduction
teres minor origin
lateral border of scapula
teres minor insertion
greater tubercle of humerus
teres minor innervation
axillary nerve
teres minor action
laterally rotates and adducts the arm
subscapularis origin
subscapular fossa
subscapularis insertion
lesser tubercle of humerus
subscapularis innervation
subscapular nerve
subscapularis action
rotates humerus medially and stabilizes shoulder
coracobrachialis origin
coracoid process
coracobrachialis insertion
medial humerus
coracobrachialis innervation
musculocutaneous nerve
coracobrachialis action
flexes and adducts at the shoulder joint
biceps brachii origin
short head: coracoid process
long head: supraglenoid tubercle
biceps brachii insertion
radial tuberosity
biceps brachii innervation
musculocutanous nerve
biceps brachii action
flexes elbow and supinates forearm
brachialis origin
anterior surface of humerus
brachialis insertion
coronoid process and tuberosity of ulna
brachialis innervation
musculocutaneous nerve
brachialis action
flexion at elbow joint
triceps brachii origin
long head: infraglenoid tubercle of scapula
lateral head: posterior humerus
medial head: posterior humerus
triceps brachii insertion
olecranon fossa of ulna
triceps brachii innervation
radial nerve
triceps brachii action
extend forearm
adduct shoulder
anconeus origin
lateral epicondyle of humerus
anconeus insertion
lateral surface of olecranon process
anconeus innervation
radial nerve
anconeus action
assists in extension of forearm
stabilized elbow
abducts ulna during pronation
pronator teres origin
medial epicondyle of humerus
coronoid process of ulna
pronator teres insertion
radial pronator tuberosity
pronator teres innervation
median nerve
pronator teres action
forearm pronation
flexes elbow
flexor carpi ulnaris origin
medial epicondyle of humerus
flexor carpi ulnaris insertion
pisiform
flexor carpi ulnaris innervation
ulnar nerve
flexor carpi ulnaris action
flexion and adduction of wrist
brachioradialis origin
lateral supracondylar ridge of humerus
brachioradialis insertion
distal radius
brachioradialis innervation
radial nerve
brachioradialis action
forearm flexion
abductor pollicis longus origin
ulna, radial styloid
abductor pollicis longus insertion
first metacarpal
abductor pollicis longus innervation
posterior interosseous nerve
abductor pollicis longus action
abduction, extension of thumb
extensor pollicis brevis origin
radius
extensor pollicis brevis insertion
thumb, proximal phalax
extensor pollicis brevis innervation
posterior interosseous nerve
extensor pollicis brevis action
thumb extension
lumbrical innervation
deep branch of ulnar nerve and median nerve
lumbrical action
flex MCP
extend IP
dorsal interossei innervation
deep branch of ulnar nerve
dorsal interossei action
abduct fingers
palmar interossei innervation
deep branch of ulnar nerve
palmar interossei action
adduction of fingers
iliopsoas origin
iliac fossa
sacrum
T12-L1
psoas major and minor
iliopsoas insertion
lesser trochanter of femur
iliopsoas innervation
femoral nerve
iliopsoas action
hip flexion
psoas major origin
T12-L5
psoas major insertion
lesser trochanter of femur
psoas major innervation
lumbar plexus
psoas major action
flexes and rotates laterally the thigh
psoas minor origin
T11, L1
psoas minor insertion
pectineal line
psoas minor innervation
L1
psoas minor action
weak trunk flexor
iliacus origin
iliac fossa
iliacus insertion
lesser trochanter of femur
iliacus innervation
femoral nerve
iliacus action
flexes hip
tensor fasciae latae origin
iliac crest
tensor fasciae latae insertion
iliotibil tract
tensor fasciae latae innervation
superior gluteal nerve
tensor fasciae latae action
thigh flexion, medial rotation, and trunk stabilization
gluteus maximus origin
ilium
lumbar fascia
sacrum
sacrotuberous ligament
gluteus maximus insertion
gluteal tuberosity of femur
gluteus maximus innervation
inferior gluteal nerve
gluteus maximus action
external rotation and extension of hip joint
gluteus medius origin
ilium
gluteus medius insertion
greater trochanter of femur
gluteus medius innervation
superior gluteal nerve
gluteus medius action
abduction of hip
gluteus minimus origin
ilium
gluteus minimus insertion
greater trochanter of femur
gluteus minimus innervation
superior glueal nerve
gluteus minimus action
abduction of hip
piriformis origin
sacrum
piriformis insertion
greater trochanter
priformis innervation
nerve to piriformis
piriformis action
laterally rotate thigh
obturator externus origin
obturator foramen
obturator externus insertion
greater trochanter of femur
obturator externus innervation
obturator nerve
obturator externus action
adduct and rotate thigh laterally
obturator internus origin
ischiopubic rami
obturator membrane
obturator internus insertion
greater trochanter of femur
obturator internus innervation
nerve to obturator
obturator internus action
abducts and rotates thigh laterally
inferior gemellus origin
ischial tuberosity
inferior gemellus insertion
obturator internus tendon
inferior gemellus innervation
nerve to quadratus femoris
inferior gemellus action
rotates thigh laterally
superior gemellus origin
ischial spine
superior gemellus insertion
obturator internus tendon
superior gemellus innervation
nerve to obturator internus
superior gemellus action
rotates thigh laterally
quadratus femoris origin
ischial tuberosity
quadratus femoris insertion
intertrochanteric crest
quadratus femoris innervation
nerve to quadratus femoris
quadratus femoris action
rotates thigh laterally
sartorius origin
superior to ASIS
sartorius insertion
tibia
sartorius innervation
femoral nerve
sartorius action
flexion, lateral rotation, and abduction of thigh
rectus femoris origin
AIIS
rectus femoris insertion
patella and tibial tuberosity
rectus femoris innervation
femoral nerve
rectus femoris action
knee extension
hip flexion
vastus lateralis origin
greater trochanter
vastus lateralis insertion
tibia tuberosity
vastus lateralis innervation
femoral nerve
vastus lateralis action
extends and stabilizes knee
vastus intermedius origin
femur
vastus intermedius insertion
tibial tuberosity
vastus intermedius innervation
femoral nerve
vastus intermedius action
extends knee
vastus medialis origin
femur
vastus medialis insertion
tibial tuberosity
vastus medialis innervation
femoral nerve
vastus medialis action
extends knee
biceps femoris origin
ischial tuberosity
lateral condyle of tibia
biceps femoris insertion
head of fibula
biceps femoris innervation
sciatic nerve
biceps femoris action
flexes knee joint
semitendinosus origin
ischial tuberosity
semitendinosus insertion
pes anserinus
semitendinosus innervation
sciatic nerve
semitendinosus action
flexes knee
semimembranosus origin
ischial tuberosity
semimembranosus insertion
tibia
semimembranosus innervation
sciatic nerve
semimembranosus action
flexes knee
gracilis origin
inferior pubic ramus
gracilis insertion
tibia
gracilis innervation
obturator nerve
gracilis action
adduction of hip
pectineus origin
superior pubic ramus
pectineus insertion
lesser trochanter
pectineus innervation
femoral nerve
obturator nerve
pectineus action
hip flexion and adduction
adductor brevis origin
inferior pubic ramus
adductor brevis insertion
lesser trochanter
adductor brevis innervation
obturator nerve
adductor brevis action
hip adduction
adductor longus origin
pubis
adductor longus insertion
linea aspera
adductor longus innervation
obturator nerve
adductor longus action
hip adduction and medial rotations
adductor magnus origin
ischial tuberosity
adductor magnus insertion
femur
adductor magnus innervation
obturator nerve
adductor magnus action
hip adduction
tibialis anterior origin
tibia
tibialis anterior insertion
medial cuneiform
tibialis anterior innervation
deep fibular nerve
tibialis anterior action
dorsiflex and invert foot
extensor hallucis longus origin
fibula
extensor hallucis longus insertion
distal phalanx
extensor hallucis longus innervation
deep fibular nerve
extensor hallucis longus action
extends big toe
extensor digitorum longus origin
lateral condyle of tibia
extensor digitorum longus insertion
lateral 4 digits
extensor digitorum longus innervation
deep fibular nerve
extensor digitorum longus action
extension of toes and ankle
fibularis tertius origin
fibula
fibularis tertius insertion
5th metatarsal
fibularis tertius innervation
deep fibular nerve
fibularis tertius action
dorsiflexes and everts foot
triceps surae insertion
Achilles tendon
calcaneus
triceps surae innervation
tibial nerve
triceps surae action
plantarflexes ankle joint
gastrocnemius origin
condyles of femur
gastrocnemius insertion
calcaneus
gastrocnemius innervation
tibial nerve
gastrocnemius action
plantarflexes ankle joint
popliteus, flexor hallicus longus, and flexor digitorum longus innervation
tibial nerve
fibularis longus origin
fibula
fibularis longus insertion
first metatarsal
fibularis longus innervation
superficial fibular nerve
fibularis longus action
plantarflexes ankle
fibularis brevis origin
fibula
fibularis brevis insertion
5th metatarsal
fibularis brevis innervation
superficial fibular nerve
fibularis brevis action
plantarflexes ankles
quadratus plantae origin
calcaneus
quadratus plantae insertion
tendons of FDL
quadratus plantae innervation
lateral plantar nerves
quadratus plantae action
flexes DIP
