Q25 Sternoclavicular Joint

Question 1

State the type of joint

Answer 1

A synovial saddle joint

Question 2

State the structures that are involved in this articulation

Answer 2

Medial end of the clavicle, and the manubrium of the sternum, and cartilage of rib 1. The joint contains a fibrocartilage disc

Question 3

Briefly describe the articular surface of the clavicle

Answer 3

Larger than that of the sternum, projects above the upper margin of the manubrium. Convex vertically, slightly concave horizontally. Also articulates with the first costal cartilage. Covered in fibrocartilage

Question 4

List the ligaments of this joint

Answer 4

Anterior sternoclavicular ligament, posterior sternoclavicular ligament, interclavicular ligament, Costoclavicular ligament.