Which bone is the collarbone?

Which bone is the collarbone?

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

Answer: (A)

The collarbone is the clavicle. The clavicle is a slender, S-shaped bone that runs horizontally across the top of the chest, connecting the sternum medially to the scapula laterally. It forms the front portion of the shoulder girdle and helps keep the scapula in place so the arm can move freely, while also transmitting forces from the arm to the axial skeleton and serving as a site for muscle attachment. The other bones listed aren’t collarbones: the scapula is the shoulder blade, the radius is a forearm bone, and the ilium is part of the pelvis.

The collarbone is the clavicle. The clavicle is a slender, S-shaped bone that runs horizontally across the top of the chest, connecting the sternum medially to the scapula laterally. It forms the front portion of the shoulder girdle and helps keep the scapula in place so the arm can move freely, while also transmitting forces from the arm to the axial skeleton and serving as a site for muscle attachment. The other bones listed aren’t collarbones: the scapula is the shoulder blade, the radius is a forearm bone, and the ilium is part of the pelvis.