Final answer:
A labral tear is a tear in the glenoid labrum, which is a cartilage tissue that holds the humeral head in the socket.
Step-by-step explanation:
A labral tear is a tear in the glenoid labrum, which is a cartilage tissue that holds the humeral head in the socket. The glenoid labrum is a small lip of fibrocartilage that extends around the outer margin of the glenoid cavity, providing stability to the shoulder joint.