Small intestine contain small finger-like projections to absorb digested food is calleda)Pseudopodiab)Ciliac)Villid)FlagellaCorrect answer is option 'C'. Can you explain this answer?

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Ans.villi ..villi are tiny finger like projections originating from the wall of small intestine .The blood vessels present inside the Villi can absorb nutrients from the digested food...

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Villi...

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The role of villi in small intestine is it increase the surface area for absorption of the digested food.

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Small Intestine and Villi:
The small intestine is a long, tube-like organ that is an important part of the digestive system. It is located between the stomach and the large intestine. The main function of the small intestine is to absorb nutrients from the digested food and transfer them into the bloodstream for distribution to the rest of the body. In order to increase its surface area for absorption, the small intestine contains small finger-like projections called villi.

Villi:
Villi are microscopic, finger-like projections that line the inner wall of the small intestine. They are made up of specialized cells and are responsible for absorbing the digested food. The presence of villi greatly increases the surface area available for absorption, allowing for more efficient nutrient uptake.

Structure and Function of Villi:
Each villus consists of a layer of epithelial cells that are specialized for absorption. These cells are tightly packed together and have microscopic extensions called microvilli on their surface. The microvilli further increase the surface area of the villi, providing even more space for absorption.

The structure of the villi is designed to maximize nutrient absorption. The walls of the villi are thin, allowing for rapid diffusion of nutrients into the bloodstream. The specialized cells on the surface of the villi have numerous tiny blood vessels called capillaries, which carry the absorbed nutrients away. Additionally, the villi are also rich in lymphatic vessels called lacteals, which are responsible for absorbing fat molecules.

Role in Nutrient Absorption:
The villi play a crucial role in the absorption of nutrients. As the digested food passes through the small intestine, the villi absorb the nutrients from the food and transfer them into the bloodstream. Each villus is covered in a layer of mucus, which aids in the absorption process. The absorbed nutrients, including carbohydrates, proteins, fats, vitamins, and minerals, are then transported to various parts of the body to support growth, repair, and energy production.

Conclusion:
In conclusion, the small intestine contains small finger-like projections called villi, which greatly increase the surface area available for nutrient absorption. The villi play a vital role in absorbing the digested food and transferring the nutrients into the bloodstream for distribution to the rest of the body.

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Villi

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Villi

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Villi

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Villi

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Villi are the finger like projections to absorb the digested food.

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Villi

Similar Class 7 Doubts

Amoeba obtain the food using finger-like projection calledA: PseudopodiaB: SpiraclesC: DiaphragmD: Mouth Correct answer is 'A'. Can you explain this answer?

Fat is completely digested in the i) stomach ii) mouth iii) small intestine iv) large intestine ?

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