We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Like other muscles, your anal sphincter is only accustomed to stretching so far. Your anus is full of sensitive nerve endings that make anal play feel oh so good.
The inner lining of the anal canal is the mucosa. Most anal cancers start from cells in the mucosa. Glands and ducts tubes leading from the glands are found under the mucosa. The glands make mucus, which acts as a lubricating fluid.
An anal abscess is an infected cavity filled with pus found near the anus or rectum. Ninety percent of abscesses are the result of an acute infection in the internal glands of the anus. Occasionally, bacteria, fecal material or foreign matter can clog an anal gland and tunnel into the tissue around the anus or rectum, where it may then collect in a cavity called an abscess. An anal fistula also commonly called fistula-in-ano is frequently the result of a previous or current anal abscess. Normal anatomy includes small glands just inside the anus.
Sign up. Illustrated anatomical parts with images from e-Anatomy and descriptions of anatomical structures. Description: The Sphincter ani externus External sphincter ani is a flat plane of muscular fibers, elliptical in shape and intimately adherent to the integument surrounding the margin of the anus. It measures about 8 to 10 cm. It consists of two strata, superficial and deep.