What is supraglenoid tubercle?

The supraglenoid tubercle is a small bony projection located on the superior aspect of the scapula (shoulder blade), just above the glenoid cavity. It serves as the attachment site for the long head of the biceps brachii muscle, which runs through the intertubercular groove of the humerus.

The supraglenoid tubercle plays a crucial role in providing stability and support for the biceps muscle as it functions to flex and rotate the arm at the shoulder joint. Damage or inflammation to the attachment site of the supraglenoid tubercle can result in pain and limited range of motion in the shoulder.

Overall, the supraglenoid tubercle is an important anatomical feature that contributes to the proper functioning of the shoulder joint and the biceps muscle.