The middle rectal artery is an artery in the pelvis that supplies blood to the rectum.

Structure

Internal iliac artery, showing branches, including middle rectal artery

The middle rectal artery usually arises from the internal iliac artery.[1] It is distributed to the rectum above the pectinate line.[2] It anastomoses with the inferior vesical artery, superior rectal artery, and inferior rectal artery.[2]

In males, the middle rectal artery may give off branches to the prostate and the seminal vesicles. In females, the middle rectal artery gives off branches to the vagina.

Function

The middle rectal artery supplies the rectum[2] and the anal canal inferior to the pectinate line. [3][4]

Pathology

The middle rectal artery may be embolized to treat patients with symptomatic internal hemorrhoids in a procedure called hemorrhoidal artery embolization.[5]

Additional images

  • Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses.
    Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses.
  • Middle rectal artery
    Middle rectal artery

See also

References

  1. ^ "Lower Gastrointestinal Hemorrhage". Diagnostic Imaging: Interventional Procedures (2nd ed.). Elsevier. 2018. pp. 376–389. doi:10.1016/B978-0-323-52481-0.50052-5. ISBN 978-0-323-52481-0.
  2. ^ a b c Edozien, G. Y. Bajowa (2016). "Sexual Offenses, Adult: Normal Anogenital Anatomy and Variants". Encyclopedia of Forensic and Legal Medicine (2nd ed.). Elsevier. pp. 286–311. doi:10.1016/B978-0-12-800034-2.00074-4. ISBN 978-0-12-800055-7.
  3. ^ Ahmed, A; Arbor, TC; Qureshi, WA (2024). "Anatomy, Abdomen and Pelvis: Anal Canal". StatPearls Publishing.
  4. ^ Florescu, G; Slockee, H; Yip, J. "Middle rectal artery". doi:10.53347/rID-40558.
  5. ^ "Hemorrhoidal Artery Embolization (HAE)". www.uclahealth.org. Retrieved 2024-08-16.


Allikas: Https://en.wikipedia.org/wiki/Middle_rectal_arteries
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