What is the function of the respiratory system?
It helps us to breathe in oxgygen and breathe out carbondioxide
How many lungs do we have?
two
Which lung is smaller than the other?
The left lung is smaller than the right lung
Describe the passage of oxygen through your body
Mouth or nose-Larynx-Trachea-Bronchi-Lungs
How to take care of your lungs?
Do not smoke
