exercise
4, supraspinatus, infraspinatus, teres minor and subscapularis.
The subscapularis tendon is located on the anterior (front) aspect of the shoulder joint. It is one of the four muscles that make up the rotator cuff in the shoulder, playing a role in internal rotation and stability of the shoulder joint.
Subscapularis muscle
The prime mover for shoulder internal rotation is the subscapularis muscle, which is one of the four muscles that make up the rotator cuff. It originates on the subscapular fossa of the scapula and inserts on the lesser tubercle of the humerus. Contraction of the subscapularis muscle causes internal rotation of the shoulder joint.
the lesser tubercle of the humerus
The pectoralis major muscle is anterior to the subscapularis muscles, as it lies in front of the shoulder joint and rib cage. The subscapularis muscles are located on the posterior aspect of the shoulder blade and assist in internal rotation of the arm.
subscapularis
Subscapularis
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anterior
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