Which bone lies on the pinky-side of the forearm?

Which bone lies on the pinky-side of the forearm?

• A. Radius
• B. Ulna
• C. Humerus
• D. Carpal

Answer: (B)

The bone on the pinky side of the forearm is the ulna. In anatomical position, the forearm bones run parallel: the ulna sits on the medial side, toward the little finger, while the radius is on the thumb side (lateral). The humerus is the upper-arm bone, and the carpal bones are in the wrist, leaving the ulna as the correct forearm bone on the pinky side. The radius is the bone on the opposite side, helping with thumb-side movement and rotation of the forearm.

The bone on the pinky side of the forearm is the ulna. In anatomical position, the forearm bones run parallel: the ulna sits on the medial side, toward the little finger, while the radius is on the thumb side (lateral). The humerus is the upper-arm bone, and the carpal bones are in the wrist, leaving the ulna as the correct forearm bone on the pinky side. The radius is the bone on the opposite side, helping with thumb-side movement and rotation of the forearm.