| CSMAP | celiac-superior mesenteric artery portography |
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| LAS | laboratory automation system; lateral amyotrophic sclerosis; laxative abuse syndrome; left anterior-... |
| LASH | left anterior superior hemiblock |
| LSR | lanthanide shift reagent; lecithin/ sphingomyelin ratio; left superior rectus [muscle]; liver/spleen... |
| LSVC | left superior vena cava |
| ramus superior nervi transversalis cervicalis | <anatomy, nerve> Branch providing cutaneous innervation in upper part of anterior triangle of neck. Synonym: ramus superior nervi transversalis cervicalis (colli). (05 Mar 2000) |
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| ramus superior ossis pubis | A bar of bone, triangular in section, which extends posterosuperiorly from the body of the pubis to form the superior boundary of the obturator foramen; developmentally, it contributes about one-fifth of the articular surface of the acetabulum. Synonym: ramus superior ossis pubis, superior branch of the pubic bone. (05 Mar 2000) |
| ramus superior venae pulmonalis dextrae/sinistrae inferioris | Tributaries of the right and left inferior pulmonary veins which receive oxygenated blood from the superior [S6] bronchopulmonary segments of the inferior lobes of the right and left lungs. Synonym: ramus superior venae pulmonalis dextrae/sinistrae inferioris. (05 Mar 2000) |
| vena choroidea superior | <anatomy, vein> A tortuous vein that follows the choroid plexus of the lateral ventricle and unites with the superior thalamostriate vein and the anterior vein of the transparent septum to form the internal cerebral vein. Synonym: vena choroidea superior. (05 Mar 2000) |
| vena haemorrhoidalis superior | Outmoded term for superior rectal vein. (05 Mar 2000) |
| vena intercostalis superior dextra | <anatomy, vein> A tributary of the azygos vein formed by the union of the right second, third, and fourth posterior intercostal veins. Synonym: vena intercostalis superior dextra. (05 Mar 2000) |
| vena intercostalis superior sinistra | <anatomy, vein> The vein formed by the union of the left second, third, and fourth intercostal veins; it passes forward across the arch of the aorta to empty into the left brachiocephalic vein and frequently communicates also with the accessory hemiazygos vein. Synonym: vena intercostalis superior sinistra. (05 Mar 2000) |
| vena labialis superior | <anatomy, vein> Veins taking blood from the upper lip and discharging into the facial vein. Synonym: vena labialis superior. (05 Mar 2000) |
| vena laryngea superior | <anatomy, vein> Vein which accompanies the superior laryngeal artery and empties into the superior thyroid vein. Synonym: vena laryngea superior. (05 Mar 2000) |
| vena mesenterica superior | <anatomy, vein> Begins at the ileum in the right iliac fossa, ascends in the root of the mesentery, and unites behind the pancreas with the splenic vein to form the hepatic portal vein. Synonym: vena mesenterica superior. (05 Mar 2000) |
| vena ophthalmica superior | <anatomy, vein> Begins anteriorly from the nasofrontal vein, passes along the upper part of the medial wall of the orbit, passes through the superior orbital fissure, to empty into the cavernous sinus. Synonym: vena ophthalmica superior. (05 Mar 2000) |
| vena pulmonalis superior dextra | <anatomy, vein> The vein returning oxygenated blood from the superior and middle lobes of the right lung to the left atrium. Synonym: vena pulmonalis superior dextra. (05 Mar 2000) |
| vena pulmonalis superior sinistra | The vein returning oxygenated blood from the left superior lobe of the lung to the left atrium. Synonym: vena pulmonalis superior sinistra. (05 Mar 2000) |
| vena rectalis superior | <anatomy, vein> It drains the greater part of the rectal venous plexus, and ascends between the layers of the mesorectum to the brim of the pelvis, where it becomes the inferior mesenteric vein. As a tributary of the portal vein, it forms a portocaval anastomosis with the middle and inferior rectal veins (caval tributaries) via the rectal venous plexus. Synonym: vena rectalis superior. (05 Mar 2000) |
| vena thalamostriata superior | <anatomy, vein> A long vein passing forward in the groove between the thalamus and caudate nucleus, covered by the lamina affixa, receiving the transverse caudate veins along its lateral side, and joining at the caudal wall of Monro's foramen with the choroidal vein and vein of septum pellucidum to form the internal cerebral vein. Synonym: vena terminalis, vena thalamostriata superior, terminal vein, vein of corpus striatum. (05 Mar 2000) |