Why is dislocation of the humerus at the glenohumeral joint most likely to occur inferiorly?

Dislocation of the humerus at the glenohumeral joint most commonly occurs inferiorly due to the anatomical structure of the shoulder. The rotator cuff muscles provide stability primarily from above and the front, leaving the inferior aspect less supported. Additionally, during movements like falling or throwing, the arm can be forced into an abducted and externally rotated position, which increases the likelihood of an inferior dislocation. This mechanism of injury takes advantage of the weak points in the joint's stabilizing structures.