Muscle Actions Flashcards
Trapezius (upper, middle, lower)
Elevation, depression, upward rotation (assists retraction)
Levator scapulae
Elevation
Latissimus Dorsi
Agonists - Shoulder Ext & Add
Assists - Medial rotation & hor abd
Infraspinatus/Teres Minor
External Rotation
Assists horizontal abduction
Subscapularis
Medial rotation
Teres major
Shoulder ext, add, medial rotation and horizontal abduction
Pectoralis major
Agonist: Shoulder adduction, horizontal adduction. Assists medial rotation & flexion
Gluteus Maximus, medius & minimus
Glute max: hip extension, abduction & lat rot
Glute med/min - hip abduction & medial rotation
Tensor Fascia Latae
Assists Flexion, abduction & medial rotation
Biceps brachii
Elbow flexion,
Glenohumeral joint - flexion, adduction, hor add, hor abd
Triceps Brachii
Elbow extension
Brachialis
Elbow flexion
Deltoid
Shoulder flex, ext, abd, horizontal abduction
Assists - hor add, med/lat rot
*everything but adduction
Rhomboids
Shoulder retraction
Iliacus & Psoas Major
Hip flexion