Which bone articulates with the humerus to form the shoulder joint?

Which bone articulates with the humerus to form the shoulder joint?

• A. Clavicle
• B. Radius
• C. Ulna
• D. Scapula

Answer: (D)

The shoulder joint is formed when the head of the humerus sits in the glenoid cavity (fossa) of the scapula. This connection between the humeral head and the scapula creates the ball-and-socket joint that allows a wide range of motion. The clavicle does not form the joint with the humerus itself; it mainly connects to the scapula and sternum to stabilize the shoulder region. The radius and ulna meet the humerus at the elbow, not at the shoulder. So the bone that articulates with the humerus to form the shoulder joint is the scapula.

The shoulder joint is formed when the head of the humerus sits in the glenoid cavity (fossa) of the scapula. This connection between the humeral head and the scapula creates the ball-and-socket joint that allows a wide range of motion. The clavicle does not form the joint with the humerus itself; it mainly connects to the scapula and sternum to stabilize the shoulder region. The radius and ulna meet the humerus at the elbow, not at the shoulder. So the bone that articulates with the humerus to form the shoulder joint is the scapula.