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muscle anal The internal anal sphincter, IAS, or sphincter ani internus is a ring of smooth muscle that surrounds about .–. cm of the anal canal.. Join today to enjoy premium 18+ videos and photos available only on our Telegram channel. The external anal sphincter (or sphincter ani externus is an oval tube of skeletal muscle fibers. Distally, it is adherent to the skin surrounding the. muscle anal Unlock an exclusive collection of adult content on our Telegram channel—join now and never miss a thing! The internal anal sphincter (IAS is a continuation of the rectal muscle under autonomous control and is responsible for maintaining anal continence at rest. Press "open" now and start following our channel for unique updates and exclusive content! 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. The most scorching adult content is here for your pleasure. If you have weak muscles you may leak gas, liquid or solid stools. When you pass a stool, there is usually some residue of the stool left behind in the anal.
