the anus is located behind the perineum on a man.
the anus is located behind the perineum on a man.
where is the anus located on a man?
behind the perineum
human anus









































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 required by normal physiological functioning. the inner sphincter is involuntary and the outer is voluntary. it is located behind the perineum which is located behind the vagina or scrotum.
human anus
bullet::::- the digestive system is extensive and takes up a large part of the animal's body. food (algae) is collected by the radula and odontophore and enters via the downward-facing mouth. it then moves through the esophagus and into the numerous loops of the intestines. the large digestive gland helps break down the microscopic plant material, and the long rectum helps compact used food which is then excreted through the anus located in the nuchal cavity. the anus of most molluscs and indeed many animals is located far from the head. in limpets and most gastropods, however, the evolutionary torsion which took place and allowed the gastropods to have a shell into which they could completely withdraw has caused the anus to be located near the head. used food would quickly foul the nuchal cavity unless it was firmly compacted prior to being excreted. the torted condition of the limpets remains even though they no longer have a shell into which they can withdraw and even though the evolutionary advantages of torsion appear to therefore be negligible (some species of gastropod have subsequently "de-torted" and now have their anus located once again at the posterior end of the body; these groups no longer have a visceral twist to their nervous systems).
limpet