Question

Describe the structure of small intestine in human beings. Also explain the process of digestion in small intestine. for class 7th ​

Answer 1

Answer:

The small intestine is made up of the duodenum, jejunum, and ileum. Together with the esophagus, large intestine, and the stomach, it forms the gastrointestinal tract. In living humans, the small intestine alone measures about 6 to 7 meters long. After death, this length can increase by up to half.

The partly digested food now reaches the lower part of the small intestine where the intestinal juice completes the digestion of all components of the food. The carbohydrates get broken into simple sugars such as glucose, fats into fatty acids and glycerol, and proteins into amino acids.

Answer 2

Explanation:

small intestine alone measures about 6 to 7 meters long. After death, this length can increase by up to half. It has a surface area of over 200 meters.

The internal walls of the small intestine are covered in finger-like tissue called villi