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

  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
Author
hey_itsdarra
ID
310540
Card Set
Anatomy Muscle Actions (Muscles of the neck, shoulder and thorax/ upper arm muscles)
Description
muscle actions
Updated