Anal Canal

Anal canal

**The posterior canal** is a set of anatomical structures that connect the anus and rectum to the external environment. It includes the mucous membrane, submucosal layer, muscular and serous layers.

Anatomical structure

The anterior border of the posterior canal passes between the greater and lesser curvature of the rectum. The canal wall contains the following layers: - mucous membrane * outer submucosal membrane * submucosal