Which nerve lies close to the inferior aspect of the glenoid?

The axillary nerve is the correct answer because it innervates the deltoid and teres minor muscles and supplies sensation to the skin overlying the deltoid muscle. This nerve wraps around the humerus and is closely associated with the inferior aspect of the glenoid, which is the socket of the shoulder joint. The proximity of the axillary nerve to the inferior glenoid is clinically significant, particularly during surgical procedures involving the shoulder or when there is trauma to the shoulder area.

In contrast, the musculocutaneous nerve primarily innervates the muscles in the anterior compartment of the arm and is not located near the glenoid. The radial nerve runs down the posterior aspect of the arm and forearm, while the ulnar nerve is more medial and primarily affects the hand and forearm. Neither of these nerves is positioned near the glenoid, making them less relevant to the question. This anatomical relationship is crucial for understanding shoulder injuries and the management of associated nerve injuries.