Which bone lies on the lateral side of the forearm, toward the thumb?

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Multiple Choice

Which bone lies on the lateral side of the forearm, toward the thumb?

Explanation:
Think about the forearm bones in the position you’d hold it with the palm facing forward. The bone on the lateral (thumb) side of the forearm is the radius. It runs from the elbow to the wrist along the thumb side and forms the radiocarpal joint with the wrist bones. The ulna sits on the opposite side, toward the little finger. The humerus belongs to the upper arm, and the scapula is the shoulder blade, far from the forearm. So the bone toward the thumb on the outer side is the radius.

Think about the forearm bones in the position you’d hold it with the palm facing forward. The bone on the lateral (thumb) side of the forearm is the radius. It runs from the elbow to the wrist along the thumb side and forms the radiocarpal joint with the wrist bones. The ulna sits on the opposite side, toward the little finger. The humerus belongs to the upper arm, and the scapula is the shoulder blade, far from the forearm. So the bone toward the thumb on the outer side is the radius.

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