Which term is the long bone located in the upper arm?

Which term is the long bone located in the upper arm?

• A. Clavicle
• B. Ribs
• C. Sternum
• D. Humerus

Answer: (D)

A long bone is a bone that is longer than it is wide and acts as a lever for movement. In the upper arm, the long bone that runs from the shoulder to the elbow is the humerus. It has a shaft and rounded ends that form joints with the shoulder blade and the forearm bones, allowing a wide range of arm movements. The other terms refer to different bones: the clavicle is the collarbone, connecting the arm to the body; the ribs make up the rib cage; and the sternum is the breastbone in the center of the chest. None of these are the long bone of the upper arm.

A long bone is a bone that is longer than it is wide and acts as a lever for movement. In the upper arm, the long bone that runs from the shoulder to the elbow is the humerus. It has a shaft and rounded ends that form joints with the shoulder blade and the forearm bones, allowing a wide range of arm movements.

The other terms refer to different bones: the clavicle is the collarbone, connecting the arm to the body; the ribs make up the rib cage; and the sternum is the breastbone in the center of the chest. None of these are the long bone of the upper arm.