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प्रश्न
How is the small intestine designed to absorb digested food?
उत्तर
Small intestine comprises three parts- duodenum, jejunum and ileum. Ileum is the longest part of the small intestine. It contains minute finger like projections called villi where absorption of food takes place. They are approximately 4 million in number. Internally, each villus contains fine blood capillaries and lacteal tubes.
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संबंधित प्रश्न
Why does absorption of digested food occur mainly in the small intestine?
The opening of the stomach into the intestine is called ______.
All are part of the small intestine, EXCEPT
Select the correct statement.
The enzyme responsible for the digestion of proteins in the small intestine is _____________.
The finger-like outgrowths of Amoeba help to ingest food. However, the finger-like outgrowths of the human intestine help to
Name the parts of the alimentary canal where
digested food gets absorbed
Choose the odd one out from each group and give reasons.
oesophagus, small intestine, large intestine, rectum
Match the organs in Column I with the words listed in Column II.
| Column I | Column II | ||
| (a) | Rectum | (i) | Mucus |
| (b) | Gall bladder | (ii) | Villi |
| (c) | Stomach | (iii) | Taste buds |
| (d) | Tongue | (iv) | Faeces |
| (e) | Small intestine | (v) | Bile juice |
Assertion (A): The inner walls of the small intestine have finger like projections called villi which are rich in blood.
Reason (R): These villi have large surface area to help the small intestine in completing the digestion of food.
