Which anatomic feature houses the long head of the biceps tendon?

• A. Bicipital groove
• B. Greater tuberosity
• C. Coracoid process
• D. Scapular spine

Answer: (A)

The long head of the biceps tendon sits in the bicipital groove (intertubercular sulcus) of the humerus. After it originates from the supraglenoid tubercle of the scapula and briefly travels through the shoulder joint, the tendon runs down the front of the humerus, staying in this groove between the greater and lesser tubercles. The transverse humeral ligament helps hold it in place within the groove as the arm moves.

The other structures aren’t where this tendon resides: the greater tuberosity is a rotator cuff tendon attachment site, the coracoid process is where the short head of the biceps originates and serves as an attachment point for other structures, and the scapular spine is a posterior scapular landmark.