| renal artery obstruction | Narrowing or occlusion of the renal arteries. It is due usually to atherosclerosis, fibromuscular dysplasia, thrombosis, embolism, or external pressure. It may result in renovascular hypertension. (12 Dec 1998) |
|---|---|
| renal artery stenosis | <cardiology, nephrology> A narrowing of the renal artery or one of its main branches accounts for 2 to 5% of cases of hypertension. (27 Sep 1997) |
| medial plantar artery | <anatomy, artery> One of the terminal branches of the posterior tibial; distribution, medial side of the sole of the foot; anastomoses, dorsalis pedis, lateral plantar. Synonym: arteria plantaris medialis. (05 Mar 2000) |
| medial striate artery | <anatomy, artery> Arises at or just distal to the anterior communicating artery; distribution: anterior caudate and putamen and anterior limb of internal capsule. Synonym: arteria centralis longa, arteria recurrens, artery of Heubner, long central artery, recurrent artery of Heubner, recurrent artery. (05 Mar 2000) |
| medial superior genicular artery | <anatomy, artery> Origin, popliteal; distribution, knee joint; anastomoses, descending genicular, lateral superior genicular, i.e., the articular vascular network of the knee. Synonym: arteria genus superior medialis, medial superior genicular artery. (05 Mar 2000) |
| medial tarsal artery | <anatomy, artery> One of two small branches of the dorsalis pedis; distribution, to inner margin of foot. Synonym: arteria tarsea medialis. (05 Mar 2000) |
| median artery | <anatomy, artery> Origin, anterior interosseous; distribution, accompanies median nerve to palm; anastomoses, branches of superficial palmar arch. Synonym: arteria comitans nervi mediani, arteria mediana. (05 Mar 2000) |
| median sacral artery | <anatomy, artery> Origin, posterior aspect of abdominal aorta just above the bifurcation; distribution, lower lumbar vertebrae, sacrum, and coccyx; anastomoses, lateral sacral, superior and middle rectal. Synonym: arteria sacralis mediana, middle sacral artery. (05 Mar 2000) |
| mediastinal branches of internal thoracic artery | <anatomy, artery> Small twigs supplying anterior mediastinal structures: mainly thymus and lymph nodes. Synonym: rami mediastinales arteriae thoracicae internae, rami thymici, anterior mediastinal arteries, arteriae thymicae, thymic arteries. (05 Mar 2000) |
| vitelline artery | <anatomy, artery> An artery carrying blood to the yolk sac from the embryo. Synonym: arteria vitellina. (05 Mar 2000) |
| pectoral branch of thoracoacromial artery | <anatomy, artery> Branches of the thoracoacromial artery descending between and supplying the pectoralis major and minor muscles, then continuing to supply the serratus anterior muscle and, in the adult female, the upper portion of the breast. Synonym: rami pectorales arteriae thoracoacromialis. (05 Mar 2000) |
| central artery | <anatomy, artery> A branch of the terminal part of the middle cerebral artery distributed to the cortex on either side of the central sulcus. Synonym: arteria sulci centralis, artery of central sulcus, central artery, Rolandic artery. (05 Mar 2000) |
| central artery of retina | A branch of the ophthalmic artery which penetrates the optic nerve 1 cm behind the eye to enter the eye at the optic papilla in the retina; it divides into superior and inferior temporal and nasal branches. Synonym: arteria centralis retinae, arteria retinae centralis, Zinn's artery. (05 Mar 2000) |
| medium artery | <anatomy, artery> An artery with a tunica media composed principally of circularly arranged smooth muscle. Synonym: distributing artery, medium artery. (05 Mar 2000) |
| volar interosseous artery | <anatomy, artery> Origin, common interosseous; distribution, deep parts of the forearm anteriorly; anastomoses, posterior interosseous. Synonym: arteria interossea anterior, arteria interossea volaris, volar interosseous artery. (05 Mar 2000) |