What is peristalsis?

Question

peristalsis is in your digestive system what does it do?

Answer 1

Waves of muscle contraction and relaxation to move gut contents along.

Answer 2

yeah i remember...its the way the muscles contract when we swallow  

Answer 3

It's an aid in digestion that your muscles do. For example in the trachea, the tube that takes the food from your mouth to your stomach, the rings of muscle contract then relax alternately to push the ball, or bolus of food down.

Answer 4

Peristalsis: The rippling motion of muscles in the digestive tract. In the stomach, this motion mixes food with gastric juices, turning it into a thin liquid.

Answer 5

Peristalsis is the rhythmic contraction of smooth muscles to propel contents through the digestive tract

http://en.wikipedia.org/wiki/Peristalsis

Answer 6

dave b is right.... and for once, so is wikipedia lol