| ITA | inferior temporal artery; internal thoracic artery; International Tuberculosis Association |
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| IO | incisal opening; inferior oblique; inferior olive; internal os; interorbital; intestinal obstruction... |
| ACA | abnormal coronary artery; acrodermatitis chronica atrophicans; acute cerebellar ataxia; adenocarcino... |
| HEp-2 | human laryngeal tumor cells |
| JLP | juvenile laryngeal papilloma |
| mesenteric artery, inferior | The artery supplying nearly all the left half of the transverse colon, the whole of the descending colon, the sigmoid colon, and the greater part of the rectum. It is smaller than the superior mesenteric artery (mesenteric artery, superior) and arises from the aorta above its bifurcation into the common iliac arteries. (12 Dec 1998) |
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| pharyngeal branch of inferior thyroid artery | <anatomy, artery> Distributed to laryngopharynx. Synonym: rami pharyngeales arteriae thyroideae inferioris. (05 Mar 2000) |
| posterior branch of inferior pancreaticoduodenal artery | <anatomy, artery> The more dorsal of the two branches into which the inferior pancreaticoduodenal artery bifurcates; supplies uncinate process and head of pancreas, as well as the third and fourth parts of the duodenum; anastomoses with the posterior branch of the superior pancreaticuduodenal artery. Synonym: ramus posterior arteriae pancreaticoduodenalis inferioris. (05 Mar 2000) |
| posterior inferior cerebellar artery | <anatomy, artery> Origin, vertebral; distribution, lateral medulla, choroid plexus of fourth ventricle, and cerebellum; anastomoses, superior cerebellar and anterior inferior cerebellar. Synonym: arteria cerebelli inferior posterior. (05 Mar 2000) |
| posterior inferior cerebellar artery syndrome | <syndrome> A syndrome due usually to thrombosis, characterised by dysarthria, dysphagia, staggering gait, and vertigo, and marked by hypotonia, incoordination of voluntary movement, nystagmus, Horner's syndrome on the ipsilateral side, and loss of pain and temperature senses on the side of the body opposite to the lesion. Synonym: lateral medullary syndrome, Wallenberg's syndrome. (05 Mar 2000) |
| pubic branch of inferior epigastric artery | <anatomy, artery> Branch arising from the inferior epigastric artery medial to the deep inguinal ring; runs medial to femoral ring onto posterior pubis; anastomosis, pubic branch of obturator artery. This anastomosis is frequently large, referred to as an "accessory obturator artery." In 20-30%, this anastomosis replaces the obturator artery, as an "aberrant" or "replaced" obturator artery. Synonym: ramus pubicus arteriae epigastricae inferioris. (05 Mar 2000) |
| inferior alveolar artery | <anatomy, artery> Origin, 1st part of maxillary artery; distribution, through mandibular foramen/canal to lower teeth and chin; branches, artery to mylohyoid, mental artery, dental arteries. Synonym: arteria alveolaris inferior, inferior dental artery. (05 Mar 2000) |
| inferior branch of superior gluteal artery | <anatomy, artery> Distribution: gluteus medius and minimus muscles; anastomosis: lateral circumflex femoral artery. Synonym: ramus inferior arteriae gluteae superioris. (05 Mar 2000) |
| inferior dental artery | <anatomy, artery> Origin, 1st part of maxillary artery; distribution, through mandibular foramen/canal to lower teeth and chin; branches, artery to mylohyoid, mental artery, dental arteries. Synonym: arteria alveolaris inferior, inferior dental artery. (05 Mar 2000) |
| inferior epigastric artery | <anatomy, artery> Origin, external iliac; branches, cremasteric, muscular and pubic; anastomoses, superior epigastric, obturator. With overlying peritoneum, forms lateral umbilical ligament and forms a basis for distinguishing types of inguinal herniae: direct hernias pass medial to the artery; indirect hernias pass laterally. Synonym: arteria epigastrica inferior, deep epigastric artery. (05 Mar 2000) |
| inferior gluteal artery | <anatomy, artery> Origin, internal iliac; distribution, hip joint and gluteal region; anastomoses, branches of internal pudendal, lateral sacral, superior gluteal, obturator, medial and lateral circumflex femoral. Synonym: arteria glutea inferior, arteria ischiadica, arteria ischiatica. (05 Mar 2000) |
| inferior haemorrhoidal artery | <anatomy, artery> Origin, internal pudendal; distribution, anal canal, muscles and skin of the anal region, and skin of the buttock; anastomoses, middle rectal, perineal, and gluteal. Synonym: arteria rectalis inferior, inferior haemorrhoidal artery. (05 Mar 2000) |
| inferior hypophysial artery | <anatomy, artery> A small branch of the cavernous part of the internal carotid to the hypophysis. Synonym: arteria hypophysialis inferior. (05 Mar 2000) |
| inferior internal parietal artery | <anatomy, artery> The last cortical branch of the pericallosal artery; it supplies the inferior part of the precuneus. Synonym: arteria precunealis, inferior internal parietal artery. (05 Mar 2000) |
| inferior labial artery | <anatomy, artery> Origin, facial; distribution, structures of lower lip; anastomoses, the artery from the opposite side, mental and sublabial. Synonym: arteria labialis inferior. (05 Mar 2000) |