Identify the tendon running from the supraglenoid tubercle of the scapula to the proximal radius.

Identify the tendon running from the supraglenoid tubercle of the scapula to the proximal radius.

• A. Triceps tendon
• B. Brachialis tendon
• C. Extensor carpi radialis tendon
• D. Biceps tendon

Answer: (D)

The tendon running from the supraglenoid tubercle to the proximal radius belongs to the long head of the biceps brachii. The long head originates at the supraglenoid tubercle of the scapula, and its tendon travels down the arm to insert on the radial tuberosity of the proximal radius. This specific origin–insertion path is what identifies it as the biceps tendon. The other tendons listed come from different muscles with different starting points and end locations (for example, the triceps attaches at the olecranon, brachialis inserts on the ulna, and extensor carpi radialis inserts on the hand bones), so they don’t match the described connection.

The tendon running from the supraglenoid tubercle to the proximal radius belongs to the long head of the biceps brachii. The long head originates at the supraglenoid tubercle of the scapula, and its tendon travels down the arm to insert on the radial tuberosity of the proximal radius. This specific origin–insertion path is what identifies it as the biceps tendon. The other tendons listed come from different muscles with different starting points and end locations (for example, the triceps attaches at the olecranon, brachialis inserts on the ulna, and extensor carpi radialis inserts on the hand bones), so they don’t match the described connection.