Which bone is the largest bone in the upper arm?

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Multiple Choice

Which bone is the largest bone in the upper arm?

Explanation:
The largest bone in the upper arm is the humerus—the long bone that runs from the shoulder to the elbow. It’s built to be sturdy and to act as the main lever for arm movements, so it’s larger than the other bones in that region. The radius and ulna are forearm bones that sit below the elbow, and the clavicle (collarbone) is not part of the upper arm itself. Together, this makes the humerus the correct choice.

The largest bone in the upper arm is the humerus—the long bone that runs from the shoulder to the elbow. It’s built to be sturdy and to act as the main lever for arm movements, so it’s larger than the other bones in that region. The radius and ulna are forearm bones that sit below the elbow, and the clavicle (collarbone) is not part of the upper arm itself. Together, this makes the humerus the correct choice.

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