| lobus azygos | A small accessory lobe sometimes found on the apex of the right lung; separated from the rest of the upper lobe by a deep groove lodging the azygos vein. Synonym: lobus azygos. (05 Mar 2000) |
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| lymph node of azygos arch | A lymph node of the posterior mediastinal group located adjacent to the arch of the azygos vein. Synonym: nodus lymphaticus arcus venae azygos. (05 Mar 2000) |
| valve of inferior vena cava | An endocardial fold extending from the anterior inferior margin of the inferior vena cava to the anterior part of the limbus fossa ovalis. Synonym: valvula venae cavae inferioris, caval valve, eustachian valve, sylvian valve. (05 Mar 2000) |
| vena anastomotica inferior | <anatomy, vein> An inconstant vein that passes from the superficial middle cerebral vein posteriorly over the lateral aspect of the temporal lobe to enter the transverse sinus. Synonym: vena anastomotica inferior, Browning's vein, Labbe's vein. (05 Mar 2000) |
| vena basalis inferior | <anatomy, vein> Tributary to the common basal vein draining the medial and posterior part of the inferior lobe in each lung. Synonym: vena basalis inferior. (05 Mar 2000) |
| vena cava inferior | The large venous trunk which receives blood from the lower extremities and from the pelvic and abdominal organs. It travels through the abdomen (from the lower extremities) and returns blood to the right atrium of the heart. (20 Sep 2002) |
| vena choroidea inferior | <anatomy, vein> A small vein draining the lower part of the choroid plexus of the lateral ventricle into the basal vein. Synonym: vena choroidea inferior. (05 Mar 2000) |
| vena epigastrica inferior | <anatomy, vein> Corresponds to the artery of the same name and empties into the external iliac vein just proximal to the inguinal ligament. Synonym: vena epigastrica inferior, deep epigastric vein. (05 Mar 2000) |
| vena labialis inferior | <anatomy, vein> A tributary of the facial vein draining the lower lip. Synonym: vena labialis inferior. (05 Mar 2000) |
| vena laryngea inferior | <anatomy, vein> The vein passing from the lower part of the larynx to the plexus thyroideus impar. Synonym: vena laryngea inferior. (05 Mar 2000) |
| vena mesenterica inferior | <anatomy, vein> A continuation of the superior rectal vein at the brim of the pelvis, ascending to the left of the aorta behind the peritoneum and emptying into the splenic vein or into the superior mesenteric vein or rarely in the angle between these veins. Synonym: vena mesenterica inferior. (05 Mar 2000) |
| vena ophthalmica inferior | <anatomy, vein> Arises from the inferior palpebral and lacrimal veins and divides into two terminal branches, one of which runs to the pterygoid plexus while the other joins the superior ophthalmic vein or empties into the cavernous sinus. Synonym: vena ophthalmica inferior. (05 Mar 2000) |
| vena phrenica inferior | <anatomy, vein> The vein that drains the substance of the diaphragm and empties on the right side into the inferior vena cava, on the left side into the left suprarenal vein; often a second vein on the left side passes transversely across the diaphragm anterior to the oesophageal hiatus to enter the inferior vena cava. Synonym: vena phrenica inferior. (05 Mar 2000) |
| vena pulmonalis inferior dextra | <anatomy, vein> The vein returning oxygenated blood from the inferior lobe of the right lung to the left atrium. Synonym: vena pulmonalis inferior dextra. (05 Mar 2000) |
| vena pulmonalis inferior sinistra | <anatomy, vein> The vein returning oxygenated blood from the inferior lobe of the left lung to the left atrium. Synonym: vena pulmonalis inferior sinistra. (05 Mar 2000) |