| UL | ultrasonic; Underwriters Laboratories; undifferentiated lymphoma; upper limb; upper limit; upper lob... |
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| VACTERL | vertebral abnormalities, anal atresia, cardiac abnormalities, tracheoesophageal fistula and/or esoph... |
| paraumbilical veins | Several small veins arising from cutaneous veins about the umbilicus running along the round ligament of the liver, and terminating as accessory portal veins in the substance of this organ; they constitute a portocaval anastomosis and are subject to varicosity druign portal hypertension; varicose paraumbilical veins form the "caput medussae". Synonym: venae paraumbilicales, Sappey's veins. (05 Mar 2000) |
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| parietal veins | The superficial veins draining the parietal cerebral cortex and emptying into the superior sagittal sinus. Synonym: venae parietales. (05 Mar 2000) |
| masseteric veins | Plexiform vein's accompanying the masseteric artery that empty into the pterygoid venous plexus. (05 Mar 2000) |
| vesical veins | Veins that drain the vesical venous plexus; they join the internal iliac veins. Synonym: venae vesicales. (05 Mar 2000) |
| parotid veins | Branches draining part of the parotid gland and emptying into the retromandibular vein. Synonym: venae parotidea, posterior parotid veins. (05 Mar 2000) |
| vestibular veins | Veins draining the saccule and utricle; they are tributaries of both the labyrinthine veins and the vein of the vestibular aqueduct. Synonym: venae vestibulares. (05 Mar 2000) |
| Vieussens' veins | The small superficial vein's of the heart. Synonym: Vieussens' veins. (05 Mar 2000) |
| cavernous veins of penis | The cavernous venous spaces in the erectile tissue of the penis. Synonym: venae cavernosae penis. (05 Mar 2000) |
| medial circumflex femoral veins | The venae comitantes that parallel the medial circumflex femoral artery. Synonym: venae circumflexae femoris mediales. (05 Mar 2000) |
| renal veins | Large veins formed at the renal hilus by the merger of the segmental veins anterior to the corresponding arteries; they open at right angles into the inferior vena cava at the level of the second lumbar vertebra. The left renal vein receives the left suprarenal vein and the left gonadal vein, and passes through the angle between the abdominal aorta and superior mesenteric artery where it may be compressed. Synonym: venae renales. (05 Mar 2000) |
| mediastinal veins | Several small veins from the mediastinum emptying into the brachiocephalic veins or the superior vena cava. Synonym: venae mediastinales. (05 Mar 2000) |
| pectoral veins | Veins draining the pectoral muscles and emptying directly into the subclavian vein. Synonym: venae pectorales. (05 Mar 2000) |
| gluteal veins | See: inferior gluteal veins, superior gluteal veins. (05 Mar 2000) |
| peduncular veins | Small tributaries of the basal vein from the cerebral peduncle. Synonym: peduncular veins. (05 Mar 2000) |
| central veins of liver | The terminal branches of the hepatic veins that lie centrally in the hepatic lobules and receive blood from the liver sinusoids. Synonym: venae centrales hepatis, Krukenberg's veins. (05 Mar 2000) |