The humerus is the long bone that extends from the shoulder to the elbow. Which skeletal system does the humerus belong to?

The appendicular skeleton includes the bones of the arms and legs, along with the shoulder and pelvic girdles. The humerus is the long bone in the upper arm, between the shoulder and elbow, so it belongs to the appendicular skeleton. The axial skeleton forms the body's central axis, including the skull, spine, and rib cage.

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