What artery does the left colic artery branch off?
The left colic artery is the first branch of the inferior mesenteric artery and supplies the marginal artery.
What do the colic arteries supply?
The right colic artery is a branch of the superior mesenteric artery that supplies the ascending colon. It courses to the right towards ascending colon, where it splits into a superior and inferior division.
How many branches does middle colic have?
It divides into left and right branches. The right branch anastomoses with the right colic artery. The left anastomoses with the left colic artery, a branch of the inferior mesenteric artery (forming the arc of Riolan).
What does left colic vein do?
The left colic vein drains the descending colon. It is a tributary of the inferior mesenteric vein, and follows the path of its corresponding artery, the left colic artery.
What is the origin of the left colic artery?
The left colic artery is a branch of the inferior mesenteric artery, arising shortly after its origin from the aorta. It courses upwards posterior to the left colic mesentery and crosses over the anterior surface of the left psoas major muscle, left ureter and gonadal vessels.
What are the three main branches off of the celiac trunk artery )?
The celiac trunk gives off branches to the diaphragm, then divides into three main branches, the small left gastric artery which goes straight up, and the large common hepatic, and splenic arteries, which go to the right and left.
Is the right colic artery retroperitoneal?
The right colic artery (Latin: arteria colica dextra) is an inconsistent branch that arises from the right side of the superior mesenteric artery. The right colic artery passes to the right in a retroperitoneal position and supplies the ascending colon.
What artery connects the middle colic artery to the left colic artery?
The connection between the middle colic artery and the left colic artery is called the arc of Riolan. It is located approximately at the junction between the transverse and the descending colon and connects the domains of the superior and inferior mesenteric artery.
How do you know if you have a middle colic artery?
Conventional methods to identify the middle colic artery include dissection of the superior mesenteric vein superiorly from the ileocolic vein (which risks middle colic vein injury, particularly in patients with enlarged vascular root lymph nodes) and rotation of the transverse colon and mesentery (which is less …
Is the left colic artery retroperitoneal?
The left colic artery is a branch of the inferior mesenteric artery that supplies the distal thirds of the transverse colon. It courses retroperitoneally behind the left colic mesentery until it bifurcates into an ascending and descending branch.
Is the middle colic artery retroperitoneal?
Abdominal Aorta. Thoracic aorta becomes abdominal aorta after passage through the diaphragm. It remains a retroperitoneal structure along its entire course. The first branch of the abdominal aorta is the celiac trunk, followed by the superior mesenteric artery and paired renal arteries (Figure 5).