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The function of the descending colon in the digestive system is to store the remains of digested food that will be emptied into the rectum. The descending colon is on the left side of the body (barring any malformations). The term left colon is hypernymous to descending colon in precise use; many casual mentions of the left colon chiefly ...
The descending colon is the part of the colon from the splenic flexure to the beginning of the sigmoid colon. One function of the descending colon in the digestive system is to store feces that will be emptied into the rectum. It is retroperitoneal in two-thirds of humans. In the other third, it has a (usually short) mesentery. [20]
At the left colic flexure (splenic flexure) the flexed portion of the transverse and descending colon, it descends down the left side of the abdomen. It reaches the sigmoid colon which is a loop of the colon closest to the rectum and continues to the rectum and anal canal .
The descending colon occupies a similar position on the left side. [8] [9] During these topographic changes, the dorsal mesentery undergoes corresponding changes. Most anatomical and embryological textbooks say that after adopting a final position, the ascending and descending mesocolons disappear during embryogenesis.
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.
the descending colon and sigmoid colon; the left ovary and fallopian tube; the left ureter; The left upper quadrant (LUQ) extends from the median plane to the left of the patient, and from the umbilical plane to the left ribcage. The equivalent term for animals is left anterior quadrant. Important organs here are: Stomach; Spleen; Left lobe of ...
The final branch which is important for the digestive system is the inferior mesenteric artery, which supplies the regions of the digestive tract derived from the hindgut, which includes the distal 1/3 of the transverse colon, descending colon, sigmoid colon, rectum, and the anus above the pectinate line.
These appear on either side of the longitudinal muscle bundle (taenium). The bands converge at the root of the vermiform appendix. At the rectosigmoid junction, the taeniae spread out and unite to form the longitudinal muscle layer. In the caecum, the ascending colon, the descending colon and sigmoid colon the positions of these bands are fixed.