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The left colic flexure or splenic flexure (as it is close to the spleen) is the sharp bend between the transverse colon and the descending colon. The splenic flexure receives dual blood supply from the terminal branches of the superior mesenteric artery and the inferior mesenteric artery .
Particularly hazardous is the downward traction of the phrenicocolic ligament (this maneuver may be necessary for the mobilization of splenic flexure). [ citation needed ] This ligament marks the site where the colon exits the peritoneal cavity: the phrenicocolic ligament is thus an important point of intersection of abdominal anatomy and ...
It crosses the abdomen from the ascending colon at the right colic flexure (hepatic flexure) with a downward convexity to the descending colon where it curves sharply on itself beneath the lower end of the spleen forming the left colic flexure (splenic flexure). In its course, it describes an arch, the concavity of which is directed backward ...
Watershed area is the medical term referring to regions of the body, [1] that receive dual blood supply from the most distal branches of two large arteries, such as the splenic flexure of the large intestine. The term refers metaphorically to a geological watershed, or drainage divide, which separates adjacent drainage basins. For example, the ...
The hindgut (or epigaster) is the posterior part of the alimentary canal.In mammals, it includes the distal one third of the transverse colon and the splenic flexure, the descending colon, sigmoid colon and up to the ano-rectal junction.
The splenocolic ligament is a peritoneal ligament connecting the splenic capsule to the transverse colon. [1] Made of visceral peritoneum, it lies between the greater omentum and the transverse mesocolon. It has three attached borders, superiorly to the spleen, inferiorly to splenic flexure of transverse colon and posteriorly to the ...
Furthermore, the splenic flexure is formed by the mesenteric confluence between the transverse and left mesocolon. The colonic component of the splenic flexure occurs lateral to the mesenteric confluence. At every flexure, a continuous peritoneal fold lies outside the colonic/mesocolic complex tethering this to the posterior abdominal wall. [2] [6]
The descending colon extends from the left colic flexure [2]: 1194 at the upper left part of the abdomen inferior-ward through the left hypochondrium and lumbar regions, along the outer border of the left kidney, [citation needed] ending at the level of the iliac crest [2]: 1194 at the lower left part of the abdomen, [citation needed] being ...