| ulnar reflex | Pronation and adduction of the hand caused by tapping the styloid process of the ulna. Synonym: pronator reflex. (05 Mar 2000) |
|---|---|
| ulnar styloid erosions | <radiology> Seen in rheumatoid arthritis, related to: triangular fibrocartilage, prestyloid recess (of joint space), extensor carpi ulnaris tendon (12 Dec 1998) |
| ulnar variance | <radiology> Ulna minus variance ulna shorter than radius increased frequency of avascular necrosis of lunate associated with DISI, ulna plus variance ulna longer than radius increased stress on triangular fibrocartilage (12 Dec 1998) |
| ulnar veins | Venae comitantes of the ulnar artery, continuing from those of the supericial palmar arch and joining with those of the radial artery to form the brachial veins in the cubital fossa. Synonym: venae ulnares. (05 Mar 2000) |
| ungual tuberosity | A roughened raised surface of horseshoe shape on the palmar surface of the distal end of the terminal or ungual phalanx of each finger and toe, which serves to support the pulp of the digit. Synonym: tuberositas phalangis distalis, tuberositas unguicularis, ungual tuberosity. (05 Mar 2000) |
| lateral femoral tuberosity | The epicondylus located proximal to the lateral condyle. Synonym: epicondylus lateralis ossis femoris, lateral femoral tuberosity. (05 Mar 2000) |
| lateral process of calcaneal tuberosity | The lateral projection from the posterior part of the calcaneus. Synonym: processus lateralis tuberis calcanei. (05 Mar 2000) |
| lesser tuberosity of humerus | The anterior of the two tubercles of the neck of the humerus on which the subscapularis is inserted. Synonym: tuberculum minus humeri, lesser tuberosity of humerus. (05 Mar 2000) |