The Respiratory System

1
The Respiratory System
2
Whats respiration?

• Its the movement of air in and out of the body
  to obtain oxygen and expel carbon dioxide.

3
Which body parts are used?
pharynx
nose
larynx
trachea
bronchi
lung
alveoli
4
The respiratory process
Air enters through the nose.
The air goes through the pharynx, the larynx and
the trachea.
pharynx
nose
larynx
trachea
The air goes through the bronchi and into the
lungs.
bronchi
lung
alveoli
In the lungs, the air goes into the alveoli.
The air goes out of the lungs.
5
Inhale and exhale

• When we inhale, our lungs fill with air.
• When we exhale, the air leaves the lungs.

6
What can you remember about the respiratory
system?