Question

26.Why are intestinal villis highly vascular?
27. What is the function of anal sphincter?​

Answer 1

Answer:

Explanation:

Near the termination of the sigmoid colon and the beginning of the rectum, the colonic taeniae spread out to form a wide external longitudinal muscle coat. At the lower end of the rectum, muscle fibres of the longitudinal and circular coats tend to intermix.

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Answer 2

Explanation:

Answer 26. They are highly vascular more blood supply (supply of blood vessels) will lead to more absorption of digested food in the intestine.

Answer 27. An anal sphincter is a group of muscles at the end of the rectum that surrounds the anus and controls the release of stool, thereby maintaining continence. There are two sphincter muscles: one is internal and one is external. The external muscle helps maintain continence and keep stool in the rectum.

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