Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Anal columns, also known as the columns of Morgagni, are a series of small, longitudinal folds found in the mucous membrane of the anal canal. They play a role in facilitating the closure of the anal canal.
The final segment of the digestive tract through which feces are expelled from the body.
Sphincter Muscles: Circular muscles that surround and can close orifices or tubes within the body, including those controlling the opening and closing of the anus.
Mucous Membrane: A moist tissue layer lining hollow organs and cavities of the body that open to the environment, providing lubrication and protection