| vena septi pellucidi anterior | Vein draining the anterior part of the transparent septum; it empties into the superior thalamostriate vein. Synonym: vena septi pellucidi anterior. (05 Mar 2000) |
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| vena septi pellucidi posterior | Vein draining the posterior part of the transparent septum; it empties into the superior thalamostriate vein. Synonym: vena septi pellucidi posterior. (05 Mar 2000) |
| vena spiralis modioli | The vein running a spiral course in the modiolus of the cochlea; it is tributary to both the labyrinthine vein and the vein of the cochlear canaliculus. Synonym: vena spiralis modioli. (05 Mar 2000) |
| vena splenica | <anatomy, vein> Vein formed by the union (at the hilus of the spleen) of several small veins from the stomach, pancreas, spleen and mesentery. (12 Dec 1998) |
| vena sternocleidomastoidea | <anatomy, vein> It arises in the sternocleidomastoid muscle and accompanies the sternocleidomastoid branch of the occipital artery; it drains into the internal jugular or superior thyroid vein. Synonym: vena sternocleidomastoidea. (05 Mar 2000) |
| vena stylomastoidea | <anatomy, vein> It drains the tympanic cavity, traverses the facial canal exiting via the stylomastoid foramen, and empties into the retromandibular vein. Synonym: vena stylomastoidea. (05 Mar 2000) |
| vena subclavia | <anatomy, vein> The continuation of the axillary vein which follows the subclavian artery and then joins the internal jugular vein to form the brachiocephalic vein. (12 Dec 1998) |
| vena sublingualis | <anatomy, vein> Vein which accompanies the sublingual artery in the floor of the mouth, lateral to the hypoglossal nerve; it may join the deep lingual vein to form the lingual vein, or join the vena comitans nerve hypoglossi. Synonym: vena sublingualis. (05 Mar 2000) |
| vena submentalis | <anatomy, vein> A vein situated below the chin, anastomosing with the sublingual vein, connecting with the anterior jugular vein, and emptying into the facial vein. Synonym: vena submentalis. (05 Mar 2000) |
| vena supraorbitalis | <anatomy, vein> Drains the front of the scalp and unites with the supratrochlear veins to form the angular vein. Synonym: vena supraorbitalis. (05 Mar 2000) |
| vena suprarenalis dextra | <anatomy, vein> The short vein that passes from the hilum of the right suprarenal to the inferior vena cava. Synonym: vena suprarenalis dextra. (05 Mar 2000) |
| vena suprarenalis sinistra | <anatomy, vein> The vein from the hilum of the left suprarenal gland that passes downward to open into the left renal vein; it usually is joined by the left inferior phrenic vein. Synonym: vena suprarenalis sinistra. (05 Mar 2000) |
| vena suprascapularis | <anatomy, vein> Vein that accompanies the suprascapular artery and empties into the external jugular vein. Synonym: vena suprascapularis, transverse vein of scapula, vena transversa scapulae. (05 Mar 2000) |
| 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) |
| vena temporalis media | <anatomy, vein> It arises near the lateral angle of the eye and joins the superficial temporal veins to form the retromandibular vein. Synonym: vena temporalis media. (05 Mar 2000) |