Talk:Peristalsis

questions

does peristalsis only occur in humans

Pay attention dude, the picture on the right is of peristalsis in a horse. It happens in all mammals plus many other animals which have a sophisticated digestive system.

- What nerves innervate peristalsis in the esophagus?

Nerves don't innervate peristalsis, nerves innervate muscles. WLU 13:38, 16 April 2007 (UTC)[reply]

in sperm tubes

I remember being taught in school that perstalsis isn't just about the digestive system, but refers to the general movement of muscles in this way, which also happens in the sperm tubes. --Nathan (Talk) 07:02, 20 March 2006 (UTC)[reply]

food

peristalsis depends a lot on the amount of food you eat —The preceding unsigned comment was added by 152.106.240.139 (talk • contribs) 13:57, 19 October 2006 (UTC)

Peristalis

What exactly does it do? —The preceding unsigned comment was added by 24.9.224.139 (talk) 15:30, 6 December 2006 (UTC).[reply]

it is a wave like contraction of circular muscles that 'pushes' some thing along a track. IE: swallowing food, your esophegus pushes the food along. the effect is similar to if you squeezed a hose gently with two fingers and pushed a small object along inside by sliding your fingers along the hose, except in your body the tube contracts by itself without needing to be squeezed. Sahuagin 15:28, 15 April 2007 (UTC)[reply]

Trigger?

in the intestine, what triggers peristalsis? i thought i read somewhere that it was the presence of bile that triggers it, but I can't prove or disprove that from the articles about these subjects. Sahuagin 15:25, 15 April 2007 (UTC)[reply]

Peristalsis is initiated by swallowing I believe, the contractions propogate down the entire digestive tract. I know the contractions of the stomach to squirt chyme into the duodenum (sp) are slowed by the presence of fats and protein, I'm not sure if bile has a similar effect. WLU 13:38, 16 April 2007 (UTC)[reply]

Thanks, but I meant in the intestines. When there are solids travelling through the intestines, what triggers the peristalsis in the intestines? 68.146.20.16 21:35, 19 April 2007 (UTC)[reply]