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Lecture 12
Appendicular Muscles
44
Anatomy
Undergraduate 2
09/29/2010

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Term
serratus anterior
Definition
-anterior ribs to scapula
-protract scapula
Term
trapezius
Definition
-shrug
-hyperextend neck
Term
pectoralis major
Definition
flex arm at shoulder (reach for something)
shoulder adduction (snow angel)
Term
latissimus dorsi
Definition
-extension of arm at shoulder
-runner passing baton
Term
teres major
Definition
shoulder adduction (snow angel)
extension of arm at shoulder
Term
deltoid
Definition
-shoulder abduction (middle-tossing baton up)
-extension of arm at shoulder (runner with baton)
-flex arm (anterior-reaching for something)
Term
rotator cuff muscles
Definition
-scapula
-rotation of shoulder
-hold humeral head in glenoid fossa
Term
biceps brachii
Definition
-flex elbow (lifting barbells)
-main supinator
Term
brachialis
Definition
-flex elbow
Term
brachioradialis
Definition
-flex elbow
Term
triceps brachii
Definition
-extend elbow
Term
supinator
Definition
-supinates
-proximal
Term
pronator
Definition
-pronates
-teres (prox)
-quadratus (dis)
Term
flexor carpi radialis
Definition
-flex wrist on ulnar side
-superficial
Term
flexor carpi ulnaris
Definition
-flex wrist on radial side
-superficial
Term
flexor digitorum superficialis
Definition
-flex digits
forearm
Term
flexor digitorum profundus
Definition
-flex digits
forearm
Term
flexor pollicis longus
Definition
-flex thumb
forearm
Term
extensor carpi radialis longus
Definition
-extend wrist at radius (combing hair)
forearm
Term
extensor carpi ulnaris
Definition
-extend wrist on ulnar side (combing hair)
forearm
Term
extensor digitorum
Definition
extend digits
forearm
Term
extensor pollicis longus
Definition
-extend thumb
forearm
Term
thenar muscles
Definition
-move thumb
-lateral
-hand
Term
hypothenar muscles
Definition
-move pinky
-medial
-in hand
Term
lumbricals
Definition
-flex/extend fingers
-4
Term
dorsal interossei
Definition
abduction of fingers
-4
Term
palmer interossei
Definition
adduction of fingers
-4
Term
illiopsoas
Definition
-flex hip
-ascending stairs
Term
illiacus
Definition
-flex hip
Term
psoas major
Definition
-flex hip
Term
tensor fasciae latae
Definition
-hip abduction
Term
gluteus maximus
Definition
-extend hip posteriorly
Term
gluteus medius
Definition
-hip abduction (snow angel)
Term
quadriceps femoris
Definition
-extension of knee (sitting and lifting leg up)
-flex hip
Term
hamstrings
Definition
-extend hip
-flex knee (tap dance)
Term
tibialis anterior
Definition
-dorsalflexion (walking on heels)
Term
extensor hallucis longus
Definition
extend big toe
leg
Term
extensor digitorum longus
Definition
extend digits
leg
Term
fibularis longus/brevis
Definition
-eversion (walking on uneven ground)
-plantarflexion (walking on toes)
Term
gastrocnemius
Definition
-superficial
-plantarflexion (walking on toes)
-knee flex (tap dance)
Term
soleus
Definition
-deep
-plantarflexion (walking on toes)
Term
tibialis posterior/anterior
Definition
-inversion (walking on uneven ground)
Term
fibularis brevis
Definition
-inversion (walking on uneven ground)
Term
tibialus posterior
Definition
-plantar flexion (walk on toes)
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