Which two bones make up the shoulder?

The shoulder is predominantly formed by two key bones: the scapula and the clavicle. The scapula, also known as the shoulder blade, provides the socket for the ball-and-socket joint of the shoulder, allowing for a wide range of motion. The clavicle, or collarbone, connects the arm to the body and provides structural support to the shoulder.

These two bones work together to create the shoulder girdle, enabling the arm's movement in various directions. The articulation between the scapula and the clavicle is also critical for stability, facilitating the movement of the upper limb.

Other options include bones that are either not part of the shoulder complex or are involved in completely different anatomical regions, which highlights the significance of the scapula and clavicle as the primary components of the shoulder structure.