Anus Research Paper

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Lastly is the anus, which is the last part of the digestive system tract. It is a 2-inch long canal consisting of the pelvic floor muscles and the two anal sphincters. The lining of the upper anus is specialized to detects rectal contents. It lets you know whether the content is liquid , gas ,or solid. The anus is surrounded by sphincter muscles that are important in allowing control of stool. The pelvic floor muscle creates an angle between the rectum and the anus that stops stool from coming out when it is not suppose to. The internal sphincter is always tight, expect when stool enters the rectum. It keeps us continent when we are sleep or otherwise unaware of the presence of stool. When we get a urge to go to the bathroom, we rely on our

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