Middle rectal artery

Middle rectal artery
Middle rectal artery
	The blood vessels of the rectum and anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut. (Labeled as hemorrhoidal artery.)
	The arteries of the pelvis.
Details
Source	Internal iliac artery
Vein	Middle rectal veins
Supplies	Rectum, seminal vesicle, vagina
Identifiers
Latin	Arteria rectalis media, ; arteria haemorrhoidalis media
TA98	A12.2.15.036
TA2	4338
FMA	18826
	Anatomical terminology;

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 above the pectinate line.^[2]

Additional images

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

References

↑ "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.
1 2 3 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.

External links

pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (pelvicarteries)

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[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.

[:0-2] 1 2 3 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.

[1]

[2]