Answers

2014-12-17T07:03:12+05:30
Peristalsis is a radially symmetrical contraction and relaxation of muscles that propagates in a wave down a tube, in an anterograde direction.This movement helps in the movement of food through the alimentarycanal. 
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2014-12-17T07:06:20+05:30
In oesophagus food moves in the form of wave like movement called peristaltic movement
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