Corpus: Rectal venous plexus
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Synonym: haemorrhoidal plexus
English:
Definition[Bearbeiten]
The plexus venosus rectalis is a thin-walled venous plexus in the submucosa of the rectum.
Classification[Bearbeiten]
- External haemorrhoidal plexus
- Internal haemorrhoidal plexus (corpus cavernosum recti)
Anatomy[Bearbeiten]
The rectal venous plexus feeds three draining veins:
- The superior rectal vein drains the cranial portion into the inferior mesenteric vein, a tributary vessel of the portal vein.
- The middle rectal veins collect the blood from the middle sections of the plexus and lead it into the internal iliac vein.
- The inferior rectal veins drain the caudal section of the rectum and feed the internal pudendal vein with its blood.