Circulatory System                      Excretory System                        Immune System                          How to Prevent Diseases

 

Text Box: Respiratory System
Text Box: How It Works
1.	Breathing in
a.	Begins at nose & mouth
b.	Air goes through nose into nasal cavities
c.	Nose hairs trap dirt
d.	Air goes down trachea into lungs
e.	Bronchi carry air to sections of lungs
f.	Muscles contract
g.	Diaphragm contracts & flattens
2.	Breathing out
a.	Rib muscles relax
b.	Diaphragm shrinks and moves up making less space in chest
c.	Air is forced out of lungs
What Body Parts are Included 
a.	Nose and mouth-air goes in and out 
b.	Lungs-fill up with air
c.	Diaphragm-how much air you get
What System Needs to Work Properly
a.	Exercise
b.	Rest
c.	Clean air
d.	Stay away from smoke
e.	Smoke builds up tar and chemicals 
f.	Constant supply of oxygen
Interesting Facts
a.	Left lung is smaller than right lung
b.	Wall of capillaries and alveoli are 50 x thinner than tissue paper
c.	Every disease from cancer to colds can affect your lungs
How System Prevents Diseases
a.	Nose hair and mucus protects you
b.	Lungs filter air



































Text Box:  
               http://medicalimages.allrefer.com/large/respiratory-system.jpg
Text Box: Click here to play games to help you understand how the respiratory system works.




Also, click here to play another Respiratory System game.

Bibliography: The Respiratory System by Pam Walker & Elaine Wood, ã 2003, Lucent Books; The Respiratory System by Susan H. Gray, ã 2004 by The Child’s World, Discovery Houghton Mifflin Science, ã 1999 by Houghton Mifflin company

 

Names of team members: Alaina, Nicholas, Nathan, Jack, Priscila