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muscle anal 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.. Watch exclusive 18+ videos and explore our photo collection—follow our Telegram channel now. Ringlike muscles called sphincters surround your anus and keep it closed until they're activated to let your poop come out. What is the. muscle anal Watch the highest-rated adult content—accessible only through our Telegram channel. The anal sphincter is made up of sets of muscles called the "internal" and "external" sphincters. These muscles form a ring around the anus. Click "open" to become a subscriber and access everything our channel has to offer. Your ultimate source of hot adult content is just a click away! 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.
