The human anus (from Latin anus meaning "ring", "circle") is the external opening of the rectum.Two sphincters control the exit of feces from the body during an act of defecation, which is the primary function of the anus.These are the internal anal sphincter and the external anal sphincter, which are circular muscles that normally maintain constriction of the orifice and which relaxes as FMA: 15711. Jun 29, 2016 · The anal canal is the most terminal part of the lower GI tract/large intestine, which lies between the anal verge (anal orifice, anus) in the perineum below and the rectum above. The description in this topic is from below upwards, as that is how this region is usually examined in clinical practice.
Constipation Caused by Anterior Location of the Anus and its Surgical Correction By W. Hardy Hendren Slight anterior displacement of the anus is a common developmental abnormality that represents the mild end of the imperforate anus spectrum.Cited by: 80. Oct 28, 2015 · Perineal groove is a rare congenital malformation that is characterized by an exposed wet sulcus with nonkeratinized mucous membrane that extends from the posterior vaginal fourchette to the anterior ridge of the anal orifice. This condition is one of the uncommon anomalies of urogenital/anogenital Cited by: 5.
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Ectopic anus (EA) denotes an anus which is not situated at its normal position in the perineum. If the anal orifice is located in the perineum in a more posterior location than normal, it will be a posterior ectopic anus (PEA). We came across two such patients. A 3-month-old male child was referred. The anus is the opening where the gastrointestinal tract ends and exits the body. The anus starts at the bottom of the rectum, the last portion of the colon (large intestine). The anorectal line.
Find the perfect Anus stock photos and editorial news pictures from Getty Images. Download premium images you can't get anywhere else. Imperforate anus has an estimated incidence of 1 in 5000 births. It affects boys and girls with similar frequency. However, imperforate anus will present as the low version 90% of the time in females and 50% of the time in males. Imperforate anus is an occasional complication of Specialty: Medical genetics.