Science and technology news from Hopkinton Independent School
Sunday, May 18, 2008
digestive system
the digestive system starts at your esophagus goes down to your stomach were the acids in you body brake down the food into smaler peices. Then enters your small intestine then the large intestine. After it goes through the stomach and the intestins it will go to your ascending colon wich goes to the descending colon were it is turned into poo. From there it goes to your rectum but not out then to the anal canal and then out the BUTT!!!. Were it is flushed down the toilet. There is a picture of the digestive system above.
It is from the apple teacher page.
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Noah --
Hmmm, that's a rather graphic account of the journey. Technically, the food is turning to "poo" (feces, right?) long before it reaches the rectum, but you have the main idea.
I think InnerBody.com says it best:
"Feces collects here until pressure on the rectal walls cause nerve impulses to pass to the brain, which then sends messages to the voluntary muscles in the anus to relax, permitting expulsion."
-- http://www.innerbody.com/image/digeov.html
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