| 释义 |
rectal vein
Thesaurus| Noun | 1. |  rectal vein - any of several veins draining the walls of the anal canal and rectumhemorrhoidal vein, vena rectalisvein, vena, venous blood vessel - a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood" |
EncyclopediaSeeveinrectal vein
rectal veinAny of the veins accompanying the inferior, middle, or superior rectal arteries. The rectal veins originate in an interconnected venous plexus that surrounds the rectum and anal canal and that connects with the vesical (bladder) venous plexus in males and the vaginal venous plexus in females. The inferior rectal vein empties into the internal pudendal vein, the middle rectal vein empties into the internal iliac vein, and the superior rectal vein empties into the inferior mesenteric vein. The anastomoses in the rectal venous plexus allow back-pressure in the portal system to be transmitted through the inferior mesenteric and superior rectal veins to the inferior and middle rectal veins and thus into other systemic veins. Synonym: hemorrhoidal veinSee also: veinrectal vein
Related to rectal vein: rectal artery, hemorrhoidal veinSynonyms for rectal veinnoun any of several veins draining the walls of the anal canal and rectumSynonyms- hemorrhoidal vein
- vena rectalis
Related Words- vein
- vena
- venous blood vessel
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