Rectal Venous Plexus - Support

Support

The veins of the hemorrhoidal plexus are contained in very loose connective tissue, so that they get less support from surrounding structures than most other veins, and are less capable of resisting increased blood-pressure.

This article incorporates text from a public domain edition of Gray's Anatomy.


Veins of the abdomen and pelvis (TA A12.3.09–10, 12, GA 7.672)
To azygos system ascending lumbar (subcostal)
IVC
(Systemic)
To IVC or left renal vein inferior phrenic · hepatic (central veins of liver, liver sinusoid) · suprarenal · renal · gonadal (ovarian ♀/testicular ♂, pampiniform plexus ♂) · lumbar · common iliac
Common iliac
Unpaired median sacral vein
Internal iliac

posterior: iliolumbar · superior gluteal · lateral sacral

anterior: inferior gluteal · obturator · uterine ♀ (uterine plexus ♀) · vesical (vesical plexus, prostatic plexus ♂, deep of penis ♂/clitoris ♀, posterior scrotal ♂/labial ♀) · vaginal plexus/vein ♀ · middle rectal · internal pudendal (inferior rectal, bulb of penis ♂/vestibule ♀) · rectal plexus
External iliac inferior epigastric · deep circumflex iliac vein
Striolae striola caeruleola · striola viridicula · striola purpuraceola · striola roseola
Portal vein
(Portal)
Splenic short gastric · left gastroepiploic · pancreatic · inferior mesenteric (superior rectal, left colic)
Superior mesenteric right gastroepiploic · pancreaticoduodenal · jejunal · ileal · middle colic · right colic · ileocolic (appendicular)
Direct cystic · left gastric/esophageal · right gastric · paraumbilical

M: VAS

anat (a:h/u/t/a/l,v:h/u/t/a/l)/phys/devp/cell/prot

noco/syva/cong/lyvd/tumr, sysi/epon, injr

proc, drug (C2s+n/3/4/5/7/8/9)

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