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muscle anal The anal sphincter is made up of sets of muscles called the "internal" and "external" sphincters. These muscles form a ring around the anus.. Follow our Telegram channel for instant access to all 18+ videos, photos, and more. muscle anal Join now for instant access to the finest selection of adult content, only on our Telegram channel. Internal anal sphincter muscles: The inner ring of muscles. It works all the time to keep the stool (poo in and relaxes when opening your do not. Tap "open" to be part of our lively community by subscribing to our channel today. The internal anal sphincter, IAS, or sphincter ani internus is a ring of smooth muscle that surrounds about .–. cm of the anal canal. Your gateway to the ultimate collection of steamy adult content is just one click away! The internal anal sphincter (IAS is a continuation of the rectal muscle under autonomous control and is responsible for maintaining anal continence at rest.
