Question

Which muscle originates at the inferior angle of the scapula, inserts at the medial lip of the intertubercular sulcus of the humerus, and performs extension and medial rotation at the shoulder?

Answer 1

Teres major muscle

Explanation: It is among scapulohumeral muscles. It is attached to the humerus and the scapula. It is positioned above the latissimus dorsi muscle. Teres major muscle is located underside the upper arm, between the elbow and the shoulder. It is flat in shape. It is adductor of the humerus, extend the humerus from flex position, stabilise the humeral head in glenoid cavity.