Why is the glenohumeral joint so unstable?
A) There are no ligaments connecting the bones
B) There are no muscles surrounding the joint
C) The glenoid cavity is shallow and the humeral head is rounded
D) All of the choices contribute to the instability

Question

Quizplus · Accepted Answer

The glenohumeral joint is unstable because the glenoid cavity is shallow compared to the large, rounded head of the humerus, allowing for a wide range of motion but less stability.

Why Is the Glenohumeral Joint So Unstable