Anal Pillars

Anal poles: features and functions

In the anatomy of humans and some other mammals, the anal columns, also known as columnae anales or pna (from the Latin name), are structures located in the anus. In this article we will look at the features and functions of the anal columns, as well as their role in the body.

The anal columns are vertical folds of mucous membrane located inside the anus. They are cylindrical in shape and arranged radially around the internal opening of the anus. The anal columns are covered with a special epithelium containing glands that produce mucus, which facilitates the passage of feces and prevents damage to the mucous membrane.

One of the main functions of the anal columns is to hold and regulate stool. During bowel movements, the anal columns expand and help control the passage of stool through the anus. They also help form an airtight, tight barrier that prevents unwanted passage of gases or liquids during stool retention.

In addition, the anal columns play an important role in sensing and regulating the feeling of fullness in the rectal area. Due to the presence of many nerve endings in their structure, they help transmit information about the state of fullness of the rectum to the brain, which allows us to recognize the need for emptying and control the process of defecation.

Although anal columns are a natural part of the anatomy, in rare cases they can cause some medical problems. For example, increased irritation or inflammation of the anal columns can lead to the formation of hemorrhoids or fissures in the anal area. In such cases, medical intervention may be required to relieve symptoms and treat the problem.

In conclusion, the anal pillars are an important element of the anatomy of the anus and perform several functions related to the retention, regulation and sensation of stool. Their role in maintaining the normal functioning of the intestinal system is essential for human health and comfort. If you experience any problems or unusual symptoms in the anal area, you should contact your doctor for professional advice and treatment.