Ligaments of the shoulder joint
- The ratio of the area of the humeral head to that of the scapular fossa is 3:1. This may be why there is a glenoid labrum around the glenoid cavity, which is made of fibrocartilage and attempts to widen the glenoid cavity as much as possible.
- Ligaments reinforcing the joint capsule are present on the superior and anterior surfaces of the shoulder joint, but not specifically on the posterior surface.
- The coracohumeral ligament on the joint's superior surface is stretched between the lateral aspect of the coracoid process and the intertubercular sulcus (bicipital groove).
- On the anterior surface of the joint, three glenohumeral ligaments are stretched between the superior anterior border of the glenoid labrum and the anatomic neck of the humerus.