| scleral veins | Small veins draining the sclera; they are tributaries to the anterior ciliary veins. Synonym: venae sclerales. (05 Mar 2000) |
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| sclerosing of varicose veins | A procedure which involves the injection of a sclerosing agent (causes scarring) into varicose veins in the extremities. Sclerotherapy may also be performed in the oesophagus, using UGI endoscopy, in the treatment of oesophageal varices in patients with cirrhosis of the liver. (27 Sep 1997) |
| scrotal veins | See: anterior scrotal veins, posterior scrotal veins. (05 Mar 2000) |
| pudendal veins | See: external pudendal veins, internal pudendal vein. (05 Mar 2000) |
| pulmonary veins | The veins that return the oxygenated blood from the lungs to the left atrium of the heart. (12 Dec 1998) |
| short gastric veins | Small vessels that drain the fundus and left portion of the stomach wall and empty into the splenic vein. Synonym: venae gastricae breves. (05 Mar 2000) |
| sigmoid veins | The several tributaries of the inferior mesenteric vein that drain the sigmoid colon. Synonym: venae sigmoideae. (05 Mar 2000) |
| smallest cardiac veins | Numerous small valveless venous channels that open directly into the chambers of the heart from the capillary bed in the cardiac wall, enabling a form of collateral circulation unique to the heart. Synonym: smallest cardiac veins, thebesian veins. (05 Mar 2000) |
| stellate veins | The star-shaped groups of venules in the renal cortex. Synonym: stellate veins, stellate venules, stellulae verheyenii, venae stellatae, Verheyen's stars. (05 Mar 2000) |
| Stensen's veins | Several veins (usually four) from the vascular tunic formed of veins accompanying the posterior ciliary arteries and the ciliary body; then drain into the superior or inferior ophthalmic vein. Synonym: venae vorticosae, venae choroideae oculi, choroid veins of eye, Stensen's veins, vasa vorticosa, vorticose veins. (05 Mar 2000) |
| striate veins | Veins draining the thalamus and striate body exiting the anterior perforated substance; tributary to the basal vein. Synonym: venae thalamostriatae inferiores, striate veins, venae striatae. (05 Mar 2000) |
| subcutaneous veins of abdomen | The network of superficial veins of the abdominal wall that empty into the thoracoepigastric, superficial epigastric, or superior epigastric veins and form portocaval anastomoses through their communications with the paraumbilical veins. Synonym: venae subcutaneae abdominis. (05 Mar 2000) |
| superficial cerebral veins | The veins on the superficial surface of the cerebral hemispheres; they comprise three groups: superior, middle, and inferior. Synonym: venae cerebri superficiales. (05 Mar 2000) |
| superficial dorsal veins of clitoris | A pair of veins on the dorsum of the clitoris, tributary to the external pudendal vein on either side. Synonym: venae dorsales clitoridis superficiales. (05 Mar 2000) |
| superficial dorsal veins of penis | A pair of veins on the dorsum of the penis superficial to the fascia penis; they are tributaries of the external pudendal veins on each side. Synonym: venae dorsales penis superficiales. (05 Mar 2000) |