What are villi? What is their location a | Class 7 Science Chapter Nutrition in Animals, Nutrition in Animals NCERT Solutions

Question:

What are villi? What is their location and function?

Answer:

Villi; the inner surface of the small intestine has numerous tiny, finger-like and are present as leaf shaped in the duodenum and tongue like in the jejunum and finger like as the ileum. The presence of villi provides the inner wall of the small intestine a very large surface area for the rapid absorption of food. Each villi has a network of thin and small blood vessels which is known as blood capillaries that are close to its surface. The surface of villi absorbs the digested food materials into blood flowing through them.


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Welcome to the NCERT Solutions for Class 7 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: What are villi? What is their location and function?....