Anal canal: definition, anatomy, diagram

The anal canal is the last part that constitutes the digestive system. It is placed behind the rectum.

Definition: what is the anal canal?

The anal canal is the last part that constitutes the digestive system. He is placed behind the rectum and measures about 4 cm. The anal canal allows retain feces through internal and external sphincter muscles. The anal canal is irrigated by the hemorrhoidal arteries, which are sometimes responsible for hemorrhoid attacks. The anal canal can sometimes be affected by cancer, although it is quite rare. Risk factors are regular anal sex, smoking, or local infections.

Diagram: the anal canal in pictures

Diagram of the anal canal © nmfotograf – stock.adobe.com / Journal of Women’s Health

Leave a Comment

Your email address will not be published.