digestion_157897 - Have you ever heard the phrase your eyes...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Have you ever heard the phrase “your eyes are bigger then your stomach?” Well, that may be partly true because your eyes play a part in how you digest food. In fact all of your senses aid in the digestion of food. Food look’s, smells, feels and tastes good to get you to want to eat it. You start digesting food even before you put it in your mouth. When you eat a slice of “mouth watering” pizza, you smell the freshly baked dough, see the cheese bubbling and hear he crunch of the pizza as its cut. Your mouth actually does water. Your digestive system started working before you took the first bite of your pizza. And the digestive system will be busy at work on your chewed-up food for the next hours or days. Digestion allows your body to get the nutrients and energy it needs from the food you eat. When you smell a tasty food, see it, or think about it, digestion begins. Saliva, or spit, begins to form in your mouth. When you eat, the saliva breaks down the chemicals in the food a bit, which helps make the food mushy and easy to swallow. Your tongue pushes the food while you chew with your teeth. When you're ready to swallow, the tongue pushes a tiny bit of mashed food called a bolus toward the back of your throat and into the opening of your esophagus, the second part of the digestive tract. The esophagus is an elastic pipe that moves food from the back of your throat to your stomach. But also at the back of your throat is your windpipe, which allows air to come in and out of your body. When you swallow the bolus or liquids, a flap called the epiglottis flops down over the opening of your windpipe to
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/29/2011 for the course EDU 101-404 taught by Professor Ide during the Spring '11 term at DeVry Phoenix.

Ask a homework question - tutors are online