Which of the following controls the movement of food, digested food and waste materials?
A
Sphincters
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B
Mucosa
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C
Submucus Layer
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D
Both b' and 'd
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Solution
The correct option is A Sphincters Sphincters are circular muscles present between two organs of the alimentary canal and at the anal opening to control the movement of food, digested food and waste material. The movement if controlled by contraction and relaxation of the sphincter muscles.