Anatomy of anal opening
Rectum - Wikipedia
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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.
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The anal canal is the terminal part of the large intestine. It is situated between the rectum and Anatomy of the anus and rectum. Left levator ani from within.
Description:As of [update] the cause is unknown. Median sagittal section of male pelvis. The submucous space of the canal lies above the white line between the mucous membrane and internal anal sphincter muscle. Digital rectal stimulation, the insertion of one finger into the rectum, may be used to induce peristalsis in patients whose own peristaltic reflex is inadequate to fully empty the rectum. Both of these may be used for the delivery of drugs or to relieve constipation; enemas are also used for a variety of other purposes, medical and otherwise. Anal sex Due to the proximity of the anterior wall of the rectum to the vagina in females or to the prostate in males, and the shared nerves thereof, rectal stimulation or penetration can result in sexual arousal.
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