Write basic characteristics of the small intestine?
Answers
Explanation: Small intestine, a long, narrow, folded or coiled tube extending from the stomach to the large intestine; it is the region where most digestion and absorption of food takes place. It is about 6.7 to 7.6 metres (22 to 25 feet) long, highly convoluted, and contained in the central and lower abdominal cavity.
Some points about Small intestine are as follows-
• There are major three parts which are
1. Duodenum in 'U' shape.
2. Long portion which is coiled called jejunum.
3. It is very highly coiled which is name as ileum.
• Pyloric sphincter is found on the start of the duodenum.
• It helps in absorption of digested food.
• Villi and microvilli are present in order to increase the surface area for the absorption.
• Also a great length of the intestine helps in absorption of digested food.