Tuesday, April 29, 2008

A little school paper i wrote haha a mixure of writing and biology yay!

A little bit of digestion

I take a bite of my savoury spaghetti and the warm tomato sauce makes love to my taste buds. I then chew it by using my teeth as grinders, it leaves the spaghetti chopped and decimated on my tongue, but this still is not enough. The food is sticky and won’t go down, this is where the saliva glands kick in and drench the food until it becomes a ball of sloppy goodness called bolus. My tongue now pushes the bolus to the back of the throat called the pharynx, where the food is prepared for its descent to the depths below. This is a traumatic time for the bolus because it is about to cross the line of no return, if the stomach accepts it, it will never see its home, the throat again. After a slight second of exhilaration, like being at the top of a roller coaster, the bolus plunges down past the epiglottis which is covering the windpipe. It is a bumpy ride now because two sets of involuntary muscles force the food down the esophagus to the stomach by contracting. This process is called peristalsis. In the esophagus and the stomach most of the nutrients are sucked out of the food. Peristalsis also controls the lower digestive tract so that the food can properly get to its final destination and I bet you can guess where that is. This is all in a few minutes work and the body puts up with this a lot in one day so chew slowly and watch what you eat.


Yes that was part of my school.

Hope you like it.

, i did.

Have a loverly day!!

-Josh-

No comments: