| radial eminence of wrist | A rather large flat eminence on the radial side of the palmar aspect of the wrist, due to the tuberosity of scaphoid and the ridge on the trapezium. Synonym: eminentia carpi radialis. (05 Mar 2000) |
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| radial flexor muscle of wrist | <anatomy, muscle> Origin, common flexor origin of the medial condyle of humerus; insertion, anterior surface of the base of the second and most often sending a slip to that of the third metacarpal bone; action, flexes and abducts wrist radialward; nerve supply, median; its tendon travels in its own canal roofed by a layer of the transverse carpal ligament. Synonym: musculus flexor carpi radialis, radial flexor muscle of wrist. (05 Mar 2000) |
| wrist | 1. <anatomy> The joint, or the region of the joint, between the hand and the arm; the carpus. See Carpus. "He took me by the wrist, and held me hard." (Shak) 2. <machinery> A stud or pin which forms a journal; also called wrist pin. Bridle wrist, the wrist of the left hand, in which a horseman holds the bridle. Wrist clonus. [NL. Clonus, fr. Gr. See Clonic. <medicine> A swinging plate bearing two or more wrists, for operating the valves. Origin: OE. Wriste, wrist, AS. Wrist; akin to OFries. Wriust, LG. Wrist, G. Rist wrist, instep, Icel. Rist instep, Dan. & Sw. Vrist, and perhaps to E. Writhe. Source: Websters Dictionary (01 Mar 1998) |
| wrist clonus | Rhythmical contractions and relaxations of the muscles of the forearm excited by a forcible passive extension of the hand. (05 Mar 2000) |
| wrist clonus reflex | Sudden extension of the wrist induces a sustained clonic movement. (05 Mar 2000) |
| wrist dislocation | <radiology> 10% of all carpal injuries due to fall on outstretched hand, perilunate dislocation (more common), lunate dislocation (12 Dec 1998) |
| wrist-drop | Paralysis of the extensors of the wrist and fingers; most often caused by lesion of the radial nerve. Synonym: carpoptosis, carpoptosia, drop hand. (05 Mar 2000) |
| wrist fractures | <radiology> Colles fracture distal radius DORSAL angulation of distal fragment, Smith fracture distal radius (reverse Colles) volar angulation of distal fragment, Barton intra-articular fracture through DORSAL aspect of radius ventral Barton: through VENTRAL aspect, chauffeur's fracture of radial styloid (intra-articular) (12 Dec 1998) |
| wrist injuries | Injuries to the wrist or the wrist joint. (12 Dec 1998) |
| wrist joint | The synovial joint between the distal end of the radius and its articular disk and the proximal row of carpal bones with the exception of the pisiform bone. Synonym: articulatio radiocarpea, carpal articulation, carpal joints, radiocarpal articulation, radiocarpal joint. (05 Mar 2000) |
| wrist sign | <clinical sign> In Marfan's syndrome, when the wrist is gripped with the opposite hand, the thumb and fifth finger overlap appreciably. (05 Mar 2000) |
| short radial extensor muscle of wrist | <anatomy, muscle> Origin, lateral epicondyle of humerus; insertion, base of third metacarpal bone; action, extends and abducts wrist radialward; nerve supply, radial. Synonym: musculus extensor carpi radialis brevis, short radial extensor muscle of wrist. (05 Mar 2000) |
| triangular disk of wrist | The disk that holds together the distal ends of the radius and ulna; it is attached by its apex to a depression between the styloid process and distal surface of the head of the ulna, and by its base to the ridge separating the ulnar notch from the carpal surface of the radius. Synonym: discus articularis radioulnaris, radioulnar disk, radioulnar articular disk, triangular cartilage, triangular disk of wrist, triquetrous cartilage. (05 Mar 2000) |
| ulnar extensor muscle of wrist | <anatomy, muscle> Origin, lateral epicondyle of humerus (humeral head) and oblique line and posterior border of ulna (ulnar head); insertion, base of fifth metacarpal bone; action, extends and abducts wrist ulnarward; nerve supply, radial (posterior interosseous). Synonym: musculus extensor carpi ulnaris, ulnar extensor muscle of wrist. (05 Mar 2000) |
| ulnar flexor muscle of wrist | <anatomy, muscle> Origin, humeral head from medial condyle of humerus, ulnar head from olecranon and upper three-fifths of posterior border of ulna; insertion, pisiform bone, but is continued to the fifth metacarpal bone via the pisometacarpal ligament; action, flexes and abducts wrist ulnarward; nerve supply, ulnar. Synonym: musculus flexor carpi ulnaris, ulnar flexor muscle of wrist. (05 Mar 2000) |