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Dictionary » P » Peristalsis

Peristalsis

The process of wave-like muscle contractions of the alimentary tract that moves food along.peristalsis

(Science: gastroenterology, physiology) The wormlike movement by which the alimentary canal or other tubular organs provided with both longitudinal and circular muscle fibres propel their contents. It consists of a wave of contraction passing along the tube for variable distances.

Origin: Gr. Stalsis = contraction The contraction and relaxation of muscle tissue which can allow movement of a substance in a given direction, for instance in the throat, which moves mucus up the throat and food down.


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Re: Digestion

... you cant put a 100 degree C of that stuff in your mouth :D higher temperature actually helps the alimentary track and the digestive tract on the peristalsis

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by volcob
Sat Dec 29, 2007 9:20 am
 
Forum: General Discussion
Topic: Digestion
Replies: 5
Views: 670

What is the function of the following tisues in the lungs?

... and reproductive tract secretions; controls diameter of respiratory passages (bronchi); regulates diameter of blood vessels.ex. tubular organs peristalsis (moves stuff thru intestines, repro tubes etc.)capable of slow sustained contractions (uterus in birth), involuntary control happens on ...

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by biolass
Fri May 04, 2007 9:30 pm
 
Forum: Human Biology
Topic: What is the function of the following tisues in the lungs?
Replies: 3
Views: 1322

pls help- URGENT!!!

I think the mucus is converted to saliva..as mucus is present in saliva to aid in peristalsis. For the lymphatic system, it is a complex network of lymphoid organs, lymph nodes, lymph ducts, lymph tissues, lymph capillaries and lymph vessels that produce and transport ...

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by unscientific
Tue Mar 06, 2007 1:58 pm
 
Forum: Human Biology
Topic: pls help- URGENT!!!
Replies: 4
Views: 1021

What is the hiccups?

... in the chest but positive pressure in the abdomen and thus tends to force stomach contents into the esophagus, which may set off backwards peristalsis and a burp. Closing the glottis keeps any liquids that come up from falling back into the lungs.

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by kiekyon
Tue Apr 04, 2006 7:20 am
 
Forum: Human Biology
Topic: What is the hiccups?
Replies: 16
Views: 2711

Arteries and Veins

... this blood in spurts related to the pumping of the heart. I want to know if the muscles on the walls of the arteries dilate and constrict (as in peristalsis) to push the blood foward or is it totally dependent on the pump of the heart? Also there are semilunar valves in veins. So how many flaps ...

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by Navin
Wed Aug 17, 2005 12:47 pm
 
Forum: Human Biology
Topic: Arteries and Veins
Replies: 11
Views: 1906
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