Extension of the Shoulder: Synergist & Antagonist Muscles

Extension of the shoulder: Synergist Muscle

Teres Major

Extension of the shoulder: Synergist Muscle

Triceps Brachii (long head)

Extension of the shoulders: Antagonist Muscle

Biceps Brachii

Extension of the shoulders: Antagonist Muscle

Coracobrachialis

Extension of the shoulders: Antagonist Muscle

Deltoid (anterior fibers)

Extension of the shoulder: Synergist Muscle

Deltoid (posterior fibers)

Extension of the shoulder: Synergist Muscle

Latissimus Dorsi

Extension of the shoulder: Synergist Muscle

Pectoralis Major (lower fibers)

Extension of the shoulders: Antagonist Muscle

Pectoralis major (upper fibers)