What component is included in the structure of the rotator interval?

The correct answer is the coracohumeral ligament, which is a key component of the rotator interval. The rotator interval is an anatomical area of the shoulder that includes several important structures contributing to joint stability and function.

The coracohumeral ligament extends from the coracoid process to the greater tubercle of the humerus, providing support and reinforcing the shoulder joint, particularly against inferior dislocation. This ligament helps to stabilize the shoulder, especially during arm movements and when the arm is in an overhead position.

This anatomical region is significant in the context of shoulder instability and injuries, where the integrity of the rotator interval structures, including the coracohumeral ligament, is crucial for maintaining proper shoulder function. Understanding the role of this ligament aids in diagnosing and treating shoulder pathologies effectively.

Other components like the subscapularis tendon, transverse humeral ligament, and medial glenohumeral ligament play roles in shoulder mechanics and stability but are not classified as part of the rotator interval structure specifically, which is why they don't pertain to this particular question.