| superior gluteal nerve | <anatomy, nerve> Arises from the fourth and fifth lumbar and first sacral nerves, and supplies the gluteus medius and minimus and tensor fasciae latae muscles (abductors and medial rotators of the hip joint). A lesion of this nerve causes the pelvis to drop on the unsupported side when the foot is lifted off the ground (Trendelenburg sign). Synonym: nervus gluteus superior. (05 Mar 2000) |
|---|---|
| superior gluteal veins | The veins that accompany the superior gluteal artery, entering the pelvis as two veins which unite into one and empty into the internal iliac vein. Synonym: venae gluteae superiores. (05 Mar 2000) |
| superior haemorrhagic polioencephalitis | <syndrome> A condition frequently encountered in chronic alcoholics, largely due to thiamin deficiency and characterised by disturbances in ocular motility, pupillary alterations, nystagmus, and ataxia with tremors; an organic-toxic psychosis is often an associated finding, and Korsakoff's syndrome often coexists; characteristic cellular pathology found in several areas of the brain. Synonym: superior haemorrhagic polioencephalitis, Wernicke's disease, Wernicke's encephalopathy. (05 Mar 2000) |
| 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 haemorrhoidal plexus | The autonomic plexus derived as a continuation of the inferior mesenteric plexus that accompanies the superior rectal artery. Synonym: plexus rectalis superior, superior haemorrhoidal plexus. (05 Mar 2000) |
| superior haemorrhoidal vein | <anatomy, vein> Outmoded term for superior rectal vein. (05 Mar 2000) |
| superior horn of falciform margin of saphenous opening | The upper part of the falciform margin of the opening in the fascia lata through which the greater saphenous vein passes. Synonym: cornu superius marginalis falciformis, Burns' falciform process, Burns' ligament, Hey's ligament. (05 Mar 2000) |
| superior horn of thyroid cartilage | One of the pair of upward prolongations from the thyroid cartilage to which the lateral hyothyroid ligament attaches. Synonym: cornu superius cartilaginis thyroideae. (05 Mar 2000) |
| superior hypogastric plexus | The continuation of the aortic plexus inferior to the aortic bifurcation across the fifth lumbar vertebra into the pelvis where it divides into two hypogastric nerves at the sides of the rectum; these join the pelvic splanchnic nerves to form the inferior hypogastric plexus's supplying pelvic viscera. Synonym: plexus hypogastricus superior, nervus presacralis, Latarget's nerve, presacral nerve. (05 Mar 2000) |
| superior hypophysial artery | <anatomy, artery> A small branch of the cerebral part of the internal carotid artery supplying the hypophysis. Synonym: arteria hypophysialis superior. (05 Mar 2000) |
| superior ileocaecal recess | A shallow pouch occasionally existing between the terminal ileum, the caecum, and the ileocolic artery when the latter is present. Synonym: recessus ileocaecalis superior. (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 intercostal vein | <anatomy, vein> See: left superior intercostal vein, right superior intercostal vein. (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) |