Question

the radius is on which side of the arm in anatomical position? a lateral b medial c proximal d superficial

Explanation:

In anatomical position (standing, facing forward, palms forward), the radius is the lateral bone of the forearm (arm here refers to forearm). Lateral means away from the midline of the body. Medial is towards the midline, proximal is closer to the origin of the limb, and superficial is closer to the surface. So the radius is on the lateral side.

Answer:

A. lateral