Location and structure of the colon – the colon is the section of bowel in the abdominal cavity that extends from the ileum to the anus.
The small intestineopens through the Bauhin valve into the colonat the lower part of its right half, the caecum. From here the appendix branches off as a blind-ended passage; in everyday Hungarian its inflammation is mistakenly called inflammation of the caecum.
The section running upwards from the caecum towards the liveris called the ascending colon. At the hepatic flexure (flexura hepatica) it continues into the transverse colon (transversum) as far as the splenic flexure on the left (flexura lienalis). From here it continues into the descending colon, which is followed by the S-shaped sigmoid colon and then the rectumand the anusas the final section.
The colonresembles a muscular-walled tube whose wall layers are: the mucosa, the submucosal connective tissue layer, the circular and longitudinal muscle layers, and the outer peritoneal layer.
