Educational Website For Kids


The Totally Free Children's Learning Network

Educational Games For Children
Educational Games
Educational Materials For Schools
 
Educational Materials For Homeschoolers

Educational Games For Children

Educational Materials For Schools
 
Educational Materials For Homeschoolers

Educational Games For Children
Educational Worksheets
Educational Materials For Schools
 
Educational Materials For Homeschoolers

Educational Games For Children
  Educational Movies
Educational Materials For Schools
 
Educational Materials For Homeschoolers

Educational Games For Children
  Educational Movies
Educational Materials For Schools
 
Educational Materials For Homeschoolers

Educational Games For Children
 


Return to our Main Educational Website

  Educational Virtual World

Follow The KidsKnowIt Network on Facebook
follow us on twitter
Free Educational Posters
Free Educational Posters


 

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Biology, The Study of Life On Earth
.
HOME .::. BIOLOGY .::. HUMAN BIOLOGY


ANIMALS .::. BIOLOGY GAMES .::. FORUMS











.:HOME:.
.:BIOLOGY:.
.:HUMAN BIOLOGY:.
.:ANIMALS:.
.:BIOLOGY GAMES:.
.:FORUMS:.

 







 
Educational Websites For Kids
Search The Totally Free Children's Learning Network
Educational Articles




         
Respiratory System
Oxygen  

The job of your respiratory system is very simple: To bring oxygen into your body, and remove the carbon dioxide from your body. Your body needs oxygen to survive.





Oxygen is used by your cells as it performs the functions of life. As your body uses oxygen, your cells produce another gas known as carbon dioxide. Too much carbon dioxide can be toxic, even deadly. For this reason, it is important that your body have a way to get rid of it.

 
Carbon Dioxide

The main organs in your respiratory system are your lungs. Your lungs are, in their simplest form, nothing more than sacs. As you breathe in, you fill these sacs with fresh oxygen-rich air. Your heart pumps blood into the walls of your lungs where it absorbs oxygen and releases carbon dioxide. As you exhale, or breathe out, you release the carbon dioxide-rich air into the space around you. With each breath you take, you are taking oxygen in, and putting carbon dioxide out.

From your lungs, blood returns back into your heart where it is pumped out to the rest of your body, carrying oxygen along with it.

 

Heart and Lungs


Last Biology Basics Page Next Biology Basics Page




KidsBiology.com Copyright © 1998- 2014 All Rights Reserved.