Right colic artery
| Right colic artery | |
|---|---|
 The superior mesenteric artery and its branches. (Right colic visible at center.) | |
 Colonic blood supply (right colic artery is #4) | |
| Details | |
| Source | Superior mesenteric artery |
| Vein | Right colic vein |
| Supplies | Ascending colon |
| Identifiers | |
| Latin | arteria colica dextra |
| TA98 | A12.2.12.065 |
| TA2 | 4264 |
| FMA | 14811 |
| Anatomical terminology | |
The right colic artery is an artery of the abdomen, a branch of the superior mesenteric artery supplying the ascending colon. It divides into two terminal branches - an ascending branch and a descending branch - which form anastomoses with the middle colic artery, and ileocolic artery (respectively).
The right colic artery may be removed during a right hemicolectomy.
Structure
[edit]The right colic artery is a relatively small and variable artery.[1] It affords arterial supply to the ascending colon.[2]
Origin
[edit]The right colic artery is a branch of the superior mesenteric artery.[2][3] It usually arises from a common trunk with the middle colic artery, but may also arise directly from the superior mesenteric artery, or from the ileocolic artery.[4]
Course
[edit]It passes right-ward posterior to the peritoneum, and anterior to the right gonadal vessels, the right ureter, the psoas major muscle, passing toward the middle of the ascending colon.[5]
Sometimes, it lies at a higher level, and crosses the descending part of the duodenum and the inferior extremity of the right kidney.[5]
At the colon, it divides into a descending branch and an ascending branch. These branches form arches, from the convexity of which vessels are distributed to the ascending colon.[5]
Branches and anastomoses
[edit]The descending branch anastomoses with the ileocolic artery.[5]
The ascending branch anastomoses with the middle colic artery.[5]
Variation
[edit]The right colic artery is quite variable.[1] It is absent in around 10% of individuals.[6]
Clinical significance
[edit]In a right hemicolectomy to remove the caecum and the ascending colon, the right colic artery is ligated and removed.[2][7] Ligation is performed close to the origin of the right colic artery from the superior mesenteric artery.[7]
If part of the superior mesenteric artery is missing due to a congenital abnormality, the right colic artery may supply part of the ileum.[8]
References
[edit]
This article incorporates text in the public domain from page 609 of the 20th edition of Gray's Anatomy (1918)
- ^ a b Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. p. 1193. ISBN 978-0-7020-7707-4. OCLC 1201341621.
{{cite book}}: CS1 maint: location missing publisher (link) - ^ a b c Jacob, S. (2008). "4 - Abdomen". Human Anatomy. Churchill Livingstone. pp. 71–123. doi:10.1016/B978-0-443-10373-5.50007-5. ISBN 978-0-443-10373-5.
- ^ Madani, M. M.; Golts, E. (2014). "Cardiovascular Anatomy". Reference Module in Biomedical Sciences. Elsevier. doi:10.1016/B978-0-12-801238-3.00196-3. ISBN 978-0-12-801238-3.
- ^ Gray's anatomy : the anatomical basis of clinical practice. Susan Standring (Forty-second ed.). [New York]. 2021. ISBN 978-0-7020-7707-4. OCLC 1201341621.
{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link) - ^ a b c d e Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 609.
- ^ Mazzucchelli, Luca; Maurer, Christoph (2004). "Colon, Anatomy". Encyclopedia of Gastroenterology. Academic Press. pp. 408–412. doi:10.1016/B0-12-386860-2/00147-7. ISBN 978-0-12-386860-2.
- ^ a b Ramsanahie, Anthony; Bleday, Ronald (2004). "Colectomy". Encyclopedia of Gastroenterology. Academic Press. pp. 366–371. doi:10.1016/B0-12-386860-2/00140-4. ISBN 978-0-12-386860-2.
- ^ Ziegler, Moritz M.; Garza, Jennifer J. (2004). "Intestinal Atresia". Encyclopedia of Gastroenterology. Academic Press. pp. 443–446. doi:10.1016/B0-12-386860-2/00768-1. ISBN 978-0-12-386860-2.
External links
[edit]- Anatomy figure: 39:01-04 at Human Anatomy Online, SUNY Downstate Medical Center - "Branches of the superior mesenteric artery."
- Anatomy photo:39:03-0102 at the SUNY Downstate Medical Center - "Intestines and Pancreas: Branches of Superior Mesenteric Artery"
- Anatomy image:8580 at the SUNY Downstate Medical Center
- largeintestine at The Anatomy Lesson by Wesley Norman (Georgetown University)
- sup&infmesentericart at The Anatomy Lesson by Wesley Norman (Georgetown University)
