Muscles of chest, arm, and forearm

A is

• pectoralis major

• pectoralis minor

• deltoid

• serrates anterior

B is

• pectoralis major

• pectoralis minor

• deltoid

• serrates anterior

C is

• pectoralis major

• pectoralis minor

• deltoid

• serrates anterior

D is

• pectoralis major

• pectoralis minor

• deltoid

• serrates anterior

E is

• trapezius

• latissimus dorsi

• supraspinatus

• infraspinatus

F is

• trapezius

• latissimus dorsi

• supraspinatus

• infraspinatus

G is

• trapezius

• rhomboid major

• supraspinatus

• infraspinatus

H is

• trapezius

• rhomboid major

• supraspinatus

• infraspinatus

I is

• trapezius

• rhomboid major

• supraspinatus

• infraspinatus

A is

• subscapularis

• biceps brachii

• deltoid

• triceps brachii