székletképzdés
Székletképződés, also known as defecation or bowel movement, is the final stage of the digestion process in humans and many other animals. It involves the elimination of undigested food material, bacteria, and waste products from the body in the form of feces, or stool. The process begins in the large intestine, where water is absorbed from the remaining indigestible food matter. This solidifies the waste into feces.
As feces accumulate in the rectum, the final section of the large intestine, stretch receptors are stimulated.
During defecation, the abdominal muscles contract, increasing intra-abdominal pressure, and the rectal muscles contract, pushing the