| vena vitellina | <anatomy, vein> A vein returning blood from the yolk sac to the embryo. Synonym: vena vitellina. (05 Mar 2000) |
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| vena-tech ivc filter | <radiology> Introduced as LGM (L.G. Medical, France), 1985; FDA aprroval 1991: Vena-Tech, Evanston, IL, 6-leg conical design with 6 stabilizing side bars, biocompatible metal known as Phynox (cobalt,chromium,iron,nickel,moly) Efficacy, recurrent PE: 2-6%, IVC occlusion: 8-24%, migration: 0-12% Advantages, ease of placement, excellent clot trapping efficiency, low profile, lacks ferromagnetic activity: minimal MRI artifacts Disadvantages, incomplete opening (6-19%): decreases clot-trapping efficiency, increased incidence from IJ approach, decreased with rapid deployment, increased IVC thrombosis rates: 8% initial reports; 22-24% on subsequent reports by ultrasound/MRI: 2-19% clinically symptomatic (12 Dec 1998) |
| venacavography | Angiography of a vena cava. Synonym: cavography. (05 Mar 2000) |
| venada | <zoology> The pudu. Origin: Cf. Sp. Venado a does, stag. Source: Websters Dictionary (01 Mar 1998) |
| venae arcuatae renis | Veins that parallel the arcuate arteries, receive blood from interlobular veins and straight venules, and terminate in interlobar veins. Synonym: venae arcuatae renis, arciform veins of kidney. (05 Mar 2000) |
| venae articulares temporomandibulares | Several small tributaries to the retromandibular vein from the temporomandibular joint. Synonym: venae articulares temporomandibulares. (05 Mar 2000) |
| venae brachiales | Venae comitantes of the brachial artery which empty into the axillary vein. Synonym: venae brachiales. (05 Mar 2000) |
| venae brachiocephalicae | Large veins on either side of the root of the neck formed by the junction of the internal jugular and subclavian veins. They drain blood from the head, neck, and upper extremities, and unite to form the superior vena cava. (12 Dec 1998) |
| venae bronchiales | Many veins running in front of and behind the bronchi and uniting into two main trunks which empty on the right side into the azygos vein, on the left into the accessory hemiazygos or the left superior intercostal vein. Synonym: venae bronchiales. (05 Mar 2000) |
| venae cavae | The inferior and superior venae cavae. (12 Dec 1998) |
| venae cavernosae of spleen | Small tributaries of the splenic vein in the pulp of the spleen. Synonym: Billroth's venae cavernosae. (05 Mar 2000) |
| venae cavernosae penis | The cavernous venous spaces in the erectile tissue of the penis. Synonym: venae cavernosae penis. (05 Mar 2000) |
| venae centrales hepatis | 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) |
| venae cerebelli | The veins draining the cerebellum. See: inferior veins of cerebellar hemisphere, superior veins of cerebellar hemisphere, petrosal vein, precentral cerebellar vein, inferior vein of vermis, superior vein of vermis. Synonym: venae cerebelli, veins of cerebellum. (05 Mar 2000) |
| venae cerebelli inferiores | Several veins draining the inferior portion of the cerebellar hemispheres; they terminate in the petrosal vein. Synonym: venae hemispherii cerebelli inferiores. (05 Mar 2000) |