Advertisements
Advertisements
प्रश्न
What is the location and function of the villi?
Advertisements
उत्तर १
- Villi expand the surface area of the intestine, facilitating the absorption of digested foods.
- Each villus contains a network of thin, tiny blood veins at its surface.
- The surface of the villus absorbs digested dietary molecules. Absorbed chemicals travel to various organs of the body via blood vessels.
उत्तर २
- The finger like projections in the inner walls of the small intestine is called villi. These are found in small intestine.
- Function: The villi increase the surface area for absorption of the digested food.
APPEARS IN
संबंधित प्रश्न
What substances are contained in gastric juice? What are their functions?
What are the functions of liver and pancreas in the human digestive system ?
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is:
(a) pepsin
(b) mucus
(c) saliva
(d) bile
Study the diagram given below and then answer the question that follows:
Describe the structure of the part labelled '3'.
Define the following term:
Digestion
Find the odd one out. Give reasons for your choice.
Who is telling a lie?
Large intestine: I am 7.5 meter long.
Which sphincter guards the opening of the hepato-pancreatic duct?
Observe the diagram of Human digestive system.
Match the labeling referred in column I and correlate with the function in column II.
| Column I | Column II | |
| i. | a. | The length of this depends on food the organism eats. |
| ii. | b. | Initial phase of starch digestion |
| iii. | c. | Increase the efficiency of lipase enzyme action |
| iv. | d. | This is the site of the complete digestion of carbohydrates, proteins and fats. |
In which layer of the wall of alimentary canal, secretary glands are present?
