Which two bones form the forearm?

Which two bones form the forearm?

• A. Radius and Ulna
• B. Humerus and Radius
• C. Femur and Fibula
• D. Carpal bones

Answer: (A)

Two bones form the forearm: the radius and the ulna. They run parallel from the elbow to the wrist and are connected by an interosseous membrane, which allows the forearm to rotate (pronation and supination). In anatomical position, the radius is on the thumb side and the ulna on the pinky side. The humerus is the bone of the upper arm, the femur and fibula are leg bones, and the carpal bones are the wrist bones. So radius and ulna are the correct pair that make up the forearm.

Two bones form the forearm: the radius and the ulna. They run parallel from the elbow to the wrist and are connected by an interosseous membrane, which allows the forearm to rotate (pronation and supination). In anatomical position, the radius is on the thumb side and the ulna on the pinky side. The humerus is the bone of the upper arm, the femur and fibula are leg bones, and the carpal bones are the wrist bones. So radius and ulna are the correct pair that make up the forearm.