| dorsal interosseous muscles of hand | Four muscles in the hand; origin, sides of adjacent metacarpal bones; insertion, proximal phalanges and extensor expansion, first on radial side of index, second on radial side of middle finger, third on ulnar side of middle finger, fourth on ulnar side of ring finger; action, abduct fingers 2-4 from the axis of the middle finger, nerve supply, ulnar. Synonym: musculi interossei dorsalis manus. (05 Mar 2000) |
|---|---|
| dorsal interosseous nerve | <anatomy, nerve> The deep terminal branch of the radial nerve, arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm. Synonym: nervus interosseus posterior, nervus antebrachii posterior, deep branch of the radial nerve, dorsal interosseous nerve, nervus interosseus dorsalis, posterior antebrachial nerve. (05 Mar 2000) |
| dorsal lateral cutaneous nerve | <anatomy, nerve> The continuation of the sural nerve in the foot, supplying the lateral margin and dorsum. Synonym: nervus cutaneus dorsalis lateralis, dorsal lateral cutaneous nerve. (05 Mar 2000) |
| dorsal lingual branches of lingual artery | <anatomy, artery> Branches of the lingual artery to the posterior third or root of tongue. Synonym: rami dorsales linguae arteriae lingualis. (05 Mar 2000) |
| dorsal lingual vein | <anatomy, vein> Multiple tributaries of the lingual vein draining the dorsum of the tongue, becoming increasingly larger toward the root of the tongue. Synonym: venae dorsales linguae. (05 Mar 2000) |
| dorsal longitudinal fasciculus | A bundle of thin, poorly myelinated nerve fibres reciprocally connecting the periventricular zone of the hypothalamus with ventral parts of the central gray substance of the midbrain. Synonym: fasciculus longitudinalis dorsalis, Schutz' bundle, tract of Schutz. (05 Mar 2000) |
| dorsal medial cutaneous nerve | <anatomy, nerve> The medial terminal branch of the superficial peroneal nerve, supplying the dorsum of the foot and dorsal nerves to the toes (except adjacent sides of great and second toes). Synonym: nervus cutaneus dorsalis medialis, dorsal medial cutaneous nerve. (05 Mar 2000) |
| dorsal mesogastrium | <anatomy> The umbilical region. The mesogaster. Origin: NL. See Mesogaster. Source: Websters Dictionary (01 Mar 1998) |
| dorsal metacarpal artery | <anatomy, artery> One of four arteries taking origin from the dorsal carpal arch and running on the posterior aspect of the interosseous muscles of the hand. Synonym: arteria metacarpea dorsalis, dorsal interosseous artery. (05 Mar 2000) |
| dorsal metacarpal ligaments | Fibrous bands connecting the dorsal aspects of the bases of metacarpals two to five. Synonym: ligamenta metacarpalia dorsalia. (05 Mar 2000) |
| dorsal metacarpal veins | Three veins on the dorsum of the hand draining blood from the four medial digits into the dorsal venous network of the hand. Synonym: venae metacarpeae dorsales. (05 Mar 2000) |
| dorsal metatarsal artery | <anatomy, artery> One of four arteries arising from the dorsalis pedis (I) and arcuate (II-IV) arteries and running on the dorsum of the interosseous muscles of the foot. Synonym: arteria metatarsea dorsalis. (05 Mar 2000) |
| dorsal metatarsal ligaments | Fibrous bands that connect the dorsal aspects of the bases of the metatarsals. Synonym: ligamenta metatarsalia dorsalia. (05 Mar 2000) |
| dorsal metatarsal veins | Veins arising from the dorsal digital veins forming the dorsal venous arch of the foot. Synonym: venae metatarseae dorsales. (05 Mar 2000) |
| dorsal motor nucleus of vagus | The visceral motor nucleus located in the vagal trigone (ala cinerea) of the floor of the fourth ventricle. It gives rise to the parasympathetic fibres of the vagus nerve innervating the heart muscle and the smooth musculature and glands of the respiratory and intestinal tracts. Synonym: nucleus dorsalis nervi vagi, dorsal motor nucleus of vagus, dorsal nucleus of vagus, dorsal vagal nucleus, nucleus alae cinereae. (05 Mar 2000) |