The intestine parts
DIGESTIVE SYSTEM: THE INTESTINE
What is the intestine? Description of the intestine
THE INTESTINE is the portion of the digestive tract that is located between the stomach and rectum.
Parts of the intestine
In the human being, the intestine is divided into two parts:
- Small intestine: It measures approximately 6 m in length and about 3 cm thick. Situated in the center of the abdominal cavity. Its main function is to digest food and absorb nutrients. To digest food, it secretes a series of enzymes along with a mucus that is intended to serve as a lubricant.
So that food can move the muscular walls of small and large intestines, the movements of contraction are performed, a movement called peristalsis. The intestinal wall is covered with hairiness where the absorption of nutrients into the blood takes place.
The small intestine consists of the following parts:
- Large intestine: It is approximately 1.5 m but is thicker than the small intestine, reaching about 10 cm. Its main function is to transform food from the small intestine (chyme) in feces by the action of intestinal flora, to store stool until his expulsion to the outside, to regulate body fluid balance and to absorb certain vitamins and minerals. It consists of three parts:
Functions of the intestine
The act of expelling feces outside this exercise occurs when the sphincter pressure is called defecate or, more commonly known as "shit". " made " or "crap".
The opening of the anal sphincter occurs in a conscious and voluntary. In the emptying process intervene the peristalsis in the rectum and colon, as well as the strong contractions of the abdominal muscles and anal sphincter relaxation.
More information on the intestinal diseases in the listing above.
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This material is for informational purposes only. In case of doubt, consult the doctor.