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Deltoid
Deltoid
Origin: Clavicle/Scapula
Insertion: Humerus
Action: Shoulder extension, flexion, abduction
Supraspinatus
Supraspinatus
Origin: Scapula
Insertion: Humerus
Action: Shoulder abduction/external rotation/joint stabilization
Infraspinatus
Infraspinatus
Origin: Scapula
Insertion: Humerus
Action: Shoulder external rotation/joint stabilization
Subscapularis
Subscapularis
Origin: Scapula
Insertion: Humerus
Action: Shoulder internal rotation/joint stabilization
Teres Major
Teres Major
Origin: Scapula
Insertion: Humerus
Action: Shoulder extension/adduction/internal rotation
Teres Minor
Teres Minor
Origin: Scapula
Insertion: Humerus
Action: Shoulder external rotation/adduction/joint stabilization
Coracobrachialis
Coracobrachialis
Origin: Scapula
Insertion: Humerus
Action: Shoulder adduction/flexion
Serratus Anterior
Serratus Anterior
Origin: Ribs
Insertion: Scapula
Action: Scapula protraction/rotation
Biceps Brachii
Biceps Brachii
Origin: Scapula
Insertion: Radius
Action: Elbow flexion/forearm supination
Brachialis
Brachialis
Origin: Humerus
Insertion: Ulna
Action: Elbow flexion
Triceps Brachii
Triceps Brachii
Origin: Scapula/humerus
Insertion: Ulna
Action: Elbow extension/shoulder extension
Created by Marissa Fukunaga, 2022GIFs modified from CC-BY-4.0, OpenStax, Muscles of the Pectoral Girdle and Upper LimbsGIFs modified from CC-BY-NC-SA, Ron Slagter and O. Paul Gobée, Brachial Plexues and Its Relation MusclesGIFs modified from Public Domain, Johannes Sobatta, Sobotta 1909 fig.269 - muscles of the shoulder and arm - English Labels
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