Question

What is parisalasis........................?

Answer 1

Parisalisis is a radically symmetrical contraction and relaxation of muscles that propagates a wave down a tube in an anterograde direction.

Answer 2

Peristalsis which occurs in oesophagus is the contraction and relaxation of the muscles of oesophagus to help in movement of the food particle to the stomach for further digestion ..

hope it helps.