Shoulder muscles

Biceps brachii, long head

Biceps brachii, short head

Coracobrachialis

Deltoid (anterior)

Deltoid (posterior)

Infraspinatus

Pectoralis major

Ribs

Subscapularis

Supraspinatus

Teres major (anterior)

Teres major (posterior)

Teres minor

Triceps brachii, lateral head

Triceps brachii, long head