The function of the large intestine in the human digestive system
The large intestine
The large intestine is a tube that starts from the end of the small intestine , and ends with the anus which is located at the end of the rectum , It is shorter than the small intestine in length , the large intestine is considered thicker in diameter , the large intestine is about 5 feet ( 1.5 m ) in length .
The large intestine is connected to the ileum of the small intestine via the ileocecal sphincter , from the ileocecal sphincter the large intestine forms a side ways T extending both superiorly and inferiorly .
The large intestine wraps around the border of the abdominal body cavity from the right side of the body , across the top of the abdomen and finally down the left side .
The function of the large intestine
The large intestine stores the wastes ( the food remains) , then ejects them outside the body through the anus .
The large intestine is the final section of the gastrointestinal tract that performs the vital task of absorbing the water and the vitamins , and it converts the digested food into feces .
The function of the rectum
The rectum absorbs the water from the food remains ( the wastes ) , The absorption of the water by the large intestine does not help only to condense and solidify the feces , but it also allows the body to retain the water to be used in other metabolic processes .
The ions and the nutrients released by gut bacteria and dissolved in the water are also absorbed in the large intestine and used by the body for the metabollism .
The dried , condensed fecal material is finally stored in the rectum and sigmoid colon until it can be eliminated from the body through the process of the defecation .