Question

. The contraction and expansion movement of the walls of the food pipe is called:
1 point

Answer 1

Answer:  

the contraction and expansion of the walls of the food pipe is known as peristalsis. ... Peristalsis is one of the movement which helps in the movement of food down the oesophagus. There is a series of contraction in the wall both proximal and distal end to the food bolus.

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