The forearm is part of the upper limb below the (upper) arm and above the hand and wrist, comprising the radius and ulna bones. In the supinated anatomical position, the radius is lateral and the ulna is medial.

The elbow joint is superior and the wrist joint inferior. Forearm flexion and extension occur at the elbow and pronation and supination occur between the proximal and distal radioulnar joints.

See forearm series for radiographic positioning.

Article information

rID: 36747
Section: Anatomy
Tag: radius, ulna
Synonyms or Alternate Spellings:

ADVERTISEMENT: Supporters see fewer/no ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.