Anatomy Muscle Actions (Muscles of the neck, shoulder and thorax/ upper arm muscles)

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Author:
hey_itsdarra
ID:
310540
Filename:
Anatomy Muscle Actions (Muscles of the neck, shoulder and thorax/ upper arm muscles)
Updated:
2015-10-28 19:36:04
Tags:
UofM Muscle Actions
Folders:
UofM Muscle Actions
Description:
muscle actions
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  1. Extends head; raises, rotates, and retracts (adducts) scapula
    Trapezius
  2. Prime mover of arm extension
    Latissimus dorsi
  3. lateral rotation of humerus
    Infraspinatus
  4. Extends, medially rotates, and adducts humerus; synergist of latissimus dorsi
    Teres major
  5. Assist abduction of humerus
    Supraspinatus
  6. Elevates and adducts scapula; flexes neck
    Levator scapulae
  7. Powerful forearm muscle extensor; antagonist of forearm flexors
    Triceps brachii
  8. Flexion (powerful) of elbow and supination of forearm
    Biceps brachii
  9. Synergist in forearm flexion
    Brachioradialis
  10. Major flexor of forearm
    Brachialis

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