Question

Peristaltic movement refers to :
A) Contraction and expansion of lungs.
B) Contraction and expansion of walls of food pipe.
C) Movement of limbs while walking.
D) Movement of blood throughout the body​

Answer 1

Answer:

Peristaltic movement refers to contraction and expansion of walls in food pipes

Answer 2

Peristalic movement refers to the contraction and relaxation of the food in the oesophagus and the food pipe and the food is forced down the track to the stomach.