Which of the following controls the movement of food, digested food and waste materials?
(a) Sphincters
(b) Mucosa
(c) Submucus Layer
(d) Both ‘b’ and ‘c’
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Answer:
a)SPHINCTERS
Explanation:
Sphincters prevent the backflow of any materials ,it allows only one directional movement
There are many sphincters even in alimentary canal to prevent back glow of food /bolus/chyme
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