| nasofrontal vein | <anatomy, vein> The vein located in the anterior medial part of the orbit that connects the superior ophthalmic vein with the angular vein. Synonym: vena nasofrontalis. (05 Mar 2000) |
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| sternocleidomastoid vein | <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) |
| stylomastoid vein | <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) |
| subclavian vein | <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) |
| sublingual vein | <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) |
| submental vein | <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) |
| sulcus of umbilical vein | <anatomy, vein> The sulcus on the foetal liver occupied by the umbilical vein. Synonym: sulcus venae umbilicalis. (05 Mar 2000) |
| superficial circumflex iliac vein | <anatomy, vein> Corresponding to the artery of the same name, emptying usually into the great saphenous vein, or sometimes into the femoral vein. Synonym: vena circumflexa iliaca superficialis. (05 Mar 2000) |
| superficial epigastric vein | <anatomy, vein> Drains the lower and medial part of the anterior abdominal wall and empties into the great saphenous vein. Synonym: vena epigastrica superficialis. (05 Mar 2000) |
| superficial middle cerebral vein | <anatomy, vein> A large vein passing along the line of the sylvian fissure to join the cavernous sinus; it communicates with the superior sagittal sinus and transverse sinus via the superior and inferior anastomotic veins, respectively. Synonym: vena cerebri media superficialis. (05 Mar 2000) |
| superficial vein | <anatomy, vein> One of a number of veins that course in the subcutaneous tissue and empty into deep veins; they form prominent systems of vessels in the limbs and are usually not accompanied by arteries. Synonym: vena cutanea, cutaneous vein. (05 Mar 2000) |
| superior anastomotic vein | <anatomy, vein> A large communicating vein between the superficial middle cerebral vein and the superior sagittal sinus; it passes upward from the lateral sulcus, often following the line of the central sulcus (Rolando's fissure). Synonym: vena anastomotica superior, Trolard's vein. (05 Mar 2000) |
| superior basal vein | <anatomy, vein> Tributary to the common basal vein draining the lateral and anterior part of the inferior lobe of each lung. Synonym: vena basalis superior. (05 Mar 2000) |
| superior choroid vein | <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) |
| superior haemorrhoidal vein | <anatomy, vein> Outmoded term for superior rectal vein. (05 Mar 2000) |