1. The Respiratory System
The Text Here
Big Picture

2. Your cells need oxygen
• To stay alive your cells need fuel and
oxygen
• You get fuel from the food that you
eat Text Here
• You get oxygen from the air that you
breathe

3. Why do we breathe?
• The respiratory system moves oxygen
INTO your body and moves carbon
dioxide OUT of your body
Text Here
O2 CO2 CO
O2
2
O2

4. Structures of the Respiratory
System
Text Here

5. Breathing
Text Here
Diaphragm

6. What is Asthma?
Text Here
Normal Airway Asthmatic Airway

7. Summary
• Oxygen is necessary for life
• Oxygen in the air is taken into the body through
your lungs when you breathe in
• Oxygen goes from the lungs into the blood and is
carried to the cells throughout the body
• Cells use oxygen to make energy from food
Text Here
• Waste (carbon dioxide) from the cells is carried
back to the lungs by the blood
• Carbon dioxide leaves the body when you breathe
out