Right colic artery

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Right colic artery
The superior mesenteric artery and its branches. (Right colic visible at center.)
Colonic blood supply (right colic artery is #4)
Details
SourceSuperior mesenteric artery
VeinRight colic vein
SuppliesAscending colon
Identifiers
Latinarteria colica dextra
TA98A12.2.12.065
TA24264
FMA14811
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

The right colic artery is a relatively small and variable artery.[1] It affords arterial supply to the ascending colon.[2]

Origin

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

It passes right-ward posterior to 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.[6]

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.[7]

Branches and anastomoses

The descending branch anastomoses with the ileocolic artery.[8]

The ascending branch anastomoses with the middle colic artery.[9]

Variation

The right colic artery is quite variable.[1] It is absent in around 10% of individuals.[10]

Clinical significance

In a right

caecum and the ascending colon, the right colic artery is ligated and removed.[2][11] Ligation is performed close to the origin of the right colic artery from the superior mesenteric artery.[11]

If part of the superior mesenteric artery is missing due to a congenital abnormality, the right colic artery may supply part of the ileum.[12]

References

Public domain This article incorporates text in the public domain from page 609 of the 20th edition of Gray's Anatomy (1918)

  1. ^
    OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link
    )
  2. ^
    ISBN 978-0-443-10373-5
    .
  3. ISBN 978-0-12-801238-3
    .
  4. OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link
    )
  5. ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 609.
  6. ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 609.
  7. ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 609.
  8. ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 609.
  9. ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 609.
  10. ISBN 978-0-12-386860-2
    .
  11. ^
    ISBN 978-0-12-386860-2
    .
  12. ISBN 978-0-12-386860-2
    .

External links
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