| superior haemorrhoidal artery | <anatomy, artery> Origin, inferior mesenteric; distribution, upper part of rectum; anastomoses, middle and inferior rectal. As a tributary of the portal vein, its anastomosis with these arteries forms a portosystemic or portocaval anastomosis. Synonym: arteria rectalis superior, superior haemorrhoidal artery. (05 Mar 2000) |
|---|---|
| superior intercostal artery | <anatomy, artery> Origin, costocervical trunk; distribution, structures of first and second intercostal spaces via its terminal branches, posterior intercostal arteries 1 and 2; anastomoses, anterior intercostal branches of internal thoracic. Synonym: arteria intercostalis suprema, highest intercostal artery, supreme intercostal artery. (05 Mar 2000) |
| superior internal parietal artery | <anatomy, artery> The largest cortical branch of the pericallosal artery supplying the medial and superolateral surface of the parietal lobe posterior to the paracentral lobule; rarely does it extend to supply part of the occipital lobe. Synonym: arteria parieto-occipitalis, superior internal parietal artery. (05 Mar 2000) |
| superior labial artery | <anatomy, artery> Origin, facial; distribution, structures of upper lip and, by a septal branch, the anterior and lower part of the nasal septum; anastomoses, the artery of the opposite side and the sphenopalatine. Synonym: arteria labialis superior. (05 Mar 2000) |
| superior laryngeal artery | <anatomy, artery> Origin, superior thyroid; distribution, muscles and mucous membrane of larynx; anastomoses, cricothyroid branch of superior thyroid and terminal branches of inferior laryngeal. Synonym: arteria laryngea superior. (05 Mar 2000) |
| superior lateral genicular artery | <anatomy, artery> Origin, popliteal; distribution, knee joint; anastomoses, lateral circumflex femoral, third perforating, anterior tibial recurrent, lateral inferior genicular, i.e., the articular vascular network of the knee. Synonym: arteria genus superior lateralis, lateral superior genicular artery. (05 Mar 2000) |
| superior medial 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) |
| superior mesenteric artery | <anatomy, artery> Origin, abdominal aorta; branches, inferior pancreaticoduodenal, jejunal, ileal, ileocolic, appendicular, right colic, middle colic; anastomoses, superior pancreaticoduodenal and left colic. Synonym: arteria mesenterica superior. (05 Mar 2000) |
| superior mesenteric artery syndrome | <radiology> Partial obstruction of third part of duodenum by superior mesenteric artery seen with: marked weight loss, anorexia nervosa, total body casting X-ray: distension of proximal duodenum, classically disappears when prone (12 Dec 1998) |
| superior pancreaticoduodenal artery | <anatomy, artery> Origin, gastroduodenal; one of two arteries, anterior and superior; distribution, head of pancreas, duodenum, common bile duct; anastomoses, inferior pancreaticoduodenal, splenic. Synonym: arteria pancreaticoduodenalis superior. (05 Mar 2000) |
| superior phrenic artery | <anatomy, artery> One of a pair of small arteries given off from the thoracic aorta just superior to the diaphragm; distribution, diaphragm; anastomoses, musculophrenic, pericardiacophrenic, and inferior phrenic. Synonym: arteria phrenica superior. (05 Mar 2000) |
| superior rectal artery | <anatomy, artery> Origin, inferior mesenteric; distribution, upper part of rectum; anastomoses, middle and inferior rectal. As a tributary of the portal vein, its anastomosis with these arteries forms a portosystemic or portocaval anastomosis. Synonym: arteria rectalis superior, superior haemorrhoidal artery. (05 Mar 2000) |
| superior segmental artery of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti superioris renis, artery of superior segment of kidney. (05 Mar 2000) |
| superior thoracic artery | <anatomy, artery> Origin, axillary; distribution, muscles of superior chest; anastomoses, branches of suprascapular, internal thoracic, and thoracoacromial. Synonym: arteria thoracica superior, highest thoracic artery. (05 Mar 2000) |
| superior thyroid artery | <anatomy, artery> Origin, external carotid; branches, infrahyoid, superior laryngeal, sternocleidomastoid, cricothyroid, and two terminal branches. Synonym: arteria thyroidea superior. (05 Mar 2000) |