The sternoclavicular joint is the articulation between which bones?

• A. Clavicle and sternum
• B. Scapula and humerus
• C. Radius and Ulna
• D. Pelvis and sacrum

Answer: (A)

The key idea here is identifying which bones form the sternoclavicular joint. This joint is the connection between the clavicle (clavicle) and the sternum (breastbone), specifically at the manubrium. It’s the only true bony linkage between the upper limb and the axial skeleton, and it’s a synovial saddle-type joint that allows movements like elevation/depression, protraction/retraction, and some rotation.

The other bone pairings describe different joints: the scapula and humerus form the shoulder (glenohumeral) joint, the radius and ulna form forearm joints, and the pelvis and sacrum form the sacroiliac joint.