| ASM | acid sphingomyelinase; airway smooth muscle; American Society for Microbiology; anterior scalenus mu... |
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| ASMD | anterior segment mesenchymal dysgenesis; atonic sclerotic muscle dystrophy |
| ASOD | anterior segmental ocular dysgenesis |
| ASS | acute serum sickness; acute spinal stenosis; anterior superior spine; argininosuccinate synthetase |
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |
| anterior tibial node | A small inconstant lymph node in front of the interosseous membrane along the upper part of the anterior tibial vessels. Synonym: nodus tibialis anterior, anterior tibial node. (05 Mar 2000) |
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| anterior tibial recurrent artery | <anatomy, artery> A branch of the anterior tibial artery which ascends to supply the front and sides of the knee joint, thus contributing to the articular network of the knee. Synonym: arteria recurrens tibialis anterior. (05 Mar 2000) |
| anterior tibial veins | The venae comitantes of the anterior tibial artery which empty into the popliteal vein. Synonym: venae tibiales anteriores. (05 Mar 2000) |
| anterior tibiofibular ligament | <anatomy> The ligament that binds the anterior aspect of the tibiofibular syndesmosis. Synonym: ligamentum tibiofibulare anterius. (05 Mar 2000) |
| anterior tibiotalar ligament | <anatomy> The part of the medial or deltoid ligament that extends from the medial malleolus to the neck of the talus. Synonym: pars tibiotalaris anterior ligamenti medialis, anterior talotibial ligament, anterior tibiotalar part of deltoid ligament, ligamentum medialis, ligamentum talotibiale anterius. (05 Mar 2000) |
| anterior tibiotalar part of deltoid ligament | <anatomy> The part of the medial or deltoid ligament that extends from the medial malleolus to the neck of the talus. Synonym: pars tibiotalaris anterior ligamenti medialis, anterior talotibial ligament, anterior tibiotalar part of deltoid ligament, ligamentum medialis, ligamentum talotibiale anterius. (05 Mar 2000) |
| anterior triangle of neck | The area of the neck bounded by the mandible, the anterior border of the sternocleidomastoid muscle, and the anterior midline of the neck; it is subdivided into carotid, muscular, submandibular, and submental triangles. Synonym: anterior region of neck, regio cervicalis anterior, trigonum cervicale anterius. (05 Mar 2000) |
| anterior tubercle of atlas | A conical protuberance on the anterior surface of the arch of the atlas. Synonym: tuberculum anterius atlantis. (05 Mar 2000) |
| anterior tubercle of cervical vertebrae | The anterior projection from the transverse process. Synonym: tuberculum anterius vertebrarum cervicalium. (05 Mar 2000) |
| anterior tubercle of thalamus | anterior thalamic tubercle |
| anterior tympanic artery | <anatomy, artery> Origin, maxillary; distribution, middle ear; anastomoses, tympanic branches of internal carotid and ascending pharyngeal and stylomastoid. Synonym: arteria tympanica anterior, glaserian artery. (05 Mar 2000) |
| anterior urethra | The portion of urethra distal to urogenital diaphragm (external sphincter). (05 Mar 2000) |
| anterior urethral valve | A crescentic horizontal fold in the proximal spongy urethra. (05 Mar 2000) |
| anterior urethritis | Inflammation of the portion of the urethra anterior to the triangular ligament. (05 Mar 2000) |
| anterior uveitis | Inflammation involving the ciliary body and iris. (05 Mar 2000) |