The clavicle is a horizontal strut which extends laterally from its articulation with the sternum to the shoulder where it articulates with the scapula.

Its function is to brace the shoulder out from the midline, thus permitting great freedom of movement at this joint. Palpate this bone on your own body. Feel its movement at the joint with the sternum as you hunch or rotate your shoulder. Simulate activities such as swimming or playing tennis, and note the degree of movement at the shoulder.

Note: Please do not mistake the clavicle for a rib.
- Ribs are shape like "C" (one curvature only)
- Clavicle are shaped like "S" (two curvatures)