Scheme of the anastomosis of the veins of the rectum
Details
Drains from
Rectum
Drains to
Internal iliac vein
Artery
Middle rectal artery
Identifiers
Latin
venae rectales mediae
TA98
A12.3.10.018
TA2
5030
FMA
70912
Anatomical terminology
[edit on Wikidata]
The middle rectal veins (or middle hemorrhoidal vein) take origin in the hemorrhoidal plexus and receive tributaries from the bladder, prostate, and seminal vesicle.
They run lateralward on the pelvic surface of the levator ani to end in the internal iliac vein. Veins superior to the middle rectal vein in the colon and rectum drain via the portal system to the liver. Veins inferior, and including, the middle rectal vein drain into systemic circulation and are returned to the heart, bypassing the liver.[1]
^van Hoogdalem, Edward; de Boer, Albertus G.; Breimer, Douwe D. (July 1991). "Pharmacokinetics of rectal drug administration, Part I. General considerations and clinical applications of centrally acting drugs". Clinical Pharmacokinetics. 21 (1): 14. doi:10.2165/00003088-199121010-00002. ISSN 0312-5963. Retrieved 18 March 2024. The superior rectal vein, perfusing the upper part of the rectum, drains into the portal vein and subsequently into the liver On the other hand, the middle and inferior rectal veins drain the lower part of the rectum and venous blood is returned to the inferior vena cava.
and 30 Related for: Middle rectal veins information
The middlerectalveins (or middle hemorrhoidal vein) take origin in the hemorrhoidal plexus and receive tributaries from the bladder, prostate, and seminal...
by the inferior rectalveins (or inferior hemorrhoidal veins) into the internal pudendal vein. Veins superior to the middlerectalvein in the colon and...
drained by the superior, middle, and inferior rectalveins. It forms a portosystemic (portocaval) anastomosis. This allows rectally administered medications...
The middlerectal artery is an artery in the pelvis that supplies blood to the rectum. The middlerectal artery usually arises from the internal iliac...
of veins in the human body: Veins of the heart Coronary sinus Great cardiac vein Oblique vein of left atrium Middle cardiac vein Small cardiac vein Pulmonary...
through this plexus communicates with the middle and inferior hemorrhoidal veins. The superior rectalvein leaves the lesser pelvis and crosses the left...
supplied by the superior rectal artery. The lower third is supplied by the middle and inferior rectal arteries. The superior rectal artery is a single artery...
two-thirds systemic (middle and inferior rectalvein) and one-third hepatic portal system (superior rectalvein). This means the drug will reach the circulatory...
middle and inferior portions of the rectum is drained via the middle and inferior rectalveins. In portal hypertension, venous resistance is increased within...
appropriate to gender are the middlerectal, vesical, prostatic, uterine and vaginal veins. On the left, the internal iliac vein lies lateral to the internal...
urorectal septum. The urogenital sinus divides into three parts, with the middle part forming the urethra; the upper part is largest and becomes the urinary...
vein to form the hepatic portal vein that then enters the liver. Middlerectalveins are an exception, delivering blood to inferior vena cava and bypassing...
include: left colic vein sigmoid veins superior rectalvein rectosigmoid veins Anatomical variations include the inferior mesenteric vein draining into the...
the middlerectal artery (from the internal iliac artery) and with the inferior rectal artery (from the internal pudendal artery). The superior rectal artery...
anastomosis is a specific type of circulatory anastomosis that occurs between the veins of the portal circulation and the vena cava, thus forming one of the principal...
from the deep dorsal vein of the penis, and is connected via branches to the vesical plexus and internal pudendal veins. Veins drain into the vesical...
profunda femoris artery) the middlerectal artery (from the anterior division of the internal iliac artery) and the superior rectal artery (a branch of the...
anterior longitudinal ligament and left lumbar veins. On the right side it is in relation above with the azygos vein, cisterna chyli, thoracic duct, and the...
porto–systemic collateral veins (patent paraumbilical vein, spleno–renal collaterals and dilated left and short gastric veins), splenomegaly and signs...
drained into the vesiculodeferential veins and the inferior vesical plexus, which drain into the internal iliac veins. Lymphatic drainage occurs along the...
superficial layer of superficial fascia reflected. Superior rectal artery Middlerectal artery Inferior rectal nerve This article incorporates text in the public...
on clinical signs, presence of reflux, rectal exam, and ultrasound. Often the impaction can not be felt on rectal due to distended small intestinal loops...
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pudendal canal, the nerve divides into branches, first giving off the inferior rectal nerve, then the perineal nerve, before continuing as the dorsal nerve of...
arteries and internal iliac veins. They then travel inward and forward, crossing the umbilical, inferior vesical, and middlerectal arteries. From here, in...
performed. Since the testicular and prostatic veins are connected, back flow of fluid from the testicular veins can cause fluid to be backed up into the prostate...
the tube. The reason for this effect is the high number of arteries and veins in the peritoneal cavity. Through the mechanism of diffusion, waste products...
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