The anus is the part of the human body
located at the end of the digestive system, just after the anal canal, and through which gas and fecal matter is expelled. The anus is situated in the perineal zone, just next to the genital organs. It is supplied with blood
by the inferior rectal artery
. The anus remains closed due to sphincter muscles
which normally only open consciously, except in young children. It may be susceptible to hemorrhoids
. Fecal incontinence
is a consequence of the sphincters loosening.
Original article published by
. Translated by Jeff
Latest update on August 19, 2014 at 12:26 PM by christelle.b.