| margo posterior radii | The ridge on the radius that extends from the tuberosity to the tubercle on the posterior aspect of the distal extremity. Synonym: margo posterior radii. (05 Mar 2000) |
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| circumferentia articularis radii | The portion of the head of the radius that articulates with the radial notch of the ulna. Synonym: circumferentia articularis radii. (05 Mar 2000) |
| collum radii | The narrow part of the shaft just below the head. Synonym: collum radii. (05 Mar 2000) |
| musculus pronator radii teres | <anatomy, muscle> Origin, superficial (humeral) head (ulnar) from the common flexor origin on the medial epicondyle of the humerus, deep (ulnar) head from the medial side of the coronoid process of the ulna; insertion, middle of the lateral surface of the radius; action, pronates forearm; nerve supply, median. Synonym: musculus pronator teres, musculus pronator radii teres, round pronator muscle. (05 Mar 2000) |
| musculus supinator radii brevis | <anatomy, muscle> Origin, lateral epicondyle of humerus radial collateral and anular ligaments, and supinator ridge of ulna; insertion, anterior and lateral surface of radius; action, supinates the forearm; nerve supply, radial (posterior interosseous). Synonym: musculus supinator, musculus supinator radii brevis. (05 Mar 2000) |
| corpus radii | The triangular body of the radius located between the expanded proximal and distal extremities of the bone. Synonym: corpus radii. (05 Mar 2000) |
| processus styloideus radii | A thick, pointed, palpable projection on the lateral side of the distal extremity of the radius. Synonym: processus styloideus radii. (05 Mar 2000) |
| tuberositas radii | An oval projection from the medial surface of the radius just distal to the neck, giving attachment on its posterior half to the tendon of the biceps. Synonym: tuberositas radii, bicipital tuberosity, tuber radii, tuberosity of radius. (05 Mar 2000) |
| tuber radii | An oval projection from the medial surface of the radius just distal to the neck, giving attachment on its posterior half to the tendon of the biceps. Synonym: tuberositas radii, bicipital tuberosity, tuber radii, tuberosity of radius. (05 Mar 2000) |
| facies anterior radii | The anterior surface of the radius. Synonym: facies anterior radii. (05 Mar 2000) |
| facies articularis carpi radii | The biconcave distal surface of the radius for articulation with the scaphoid bone laterally and the lunate medially. Synonym: facies articularis carpi radii. (05 Mar 2000) |
| facies posterior radii | The posterior surface of the radius. Synonym: facies posterior radii. (05 Mar 2000) |
| fovea articularis capitis radii | The depression on the top (superior surface) of the head of the radius for articulation with the capitulum of the humerus. Synonym: fovea articularis capitis radii, articular pit of head of radius. (05 Mar 2000) |
| ligamentum annulare radii | The ligament that encircles and holds the head of the radius in the radial notch of the ulna, forming the proximal radioulnar joint and enabling pronation/supination of forearm; receives the radial collateral ligament of the elbow. Synonym: ligamentum annulare radii, ligamentum orbiculare radii, orbicular ligament of radius. (05 Mar 2000) |
| ligamentum orbiculare radii | The ligament that encircles and holds the head of the radius in the radial notch of the ulna, forming the proximal radioulnar joint and enabling pronation/supination of forearm; receives the radial collateral ligament of the elbow. Synonym: ligamentum annulare radii, ligamentum orbiculare radii, orbicular ligament of radius. (05 Mar 2000) |