Forearm

Definition

The forearm is the region of the upper limb located between the elbow and the wrist, comprising two long bones, the radius and the ulna, which support movements and function of the hand. It plays a crucial role in various motions such as rotation, flexion, and extension of the wrist and hand.

Related terms

Radius: The shorter bone of the forearm that runs parallel to the ulna and rotates around it to enable pronation and supination of the hand.

Ulna: The longer bone of the forearm that forms a hinge joint with the humerus at the elbow, facilitating flexion and extension movements.

Pronation: A rotational movement of the forearm that turns the hand so that the palm faces downwards or backwards