Show:
Breathing
Gasses
Inside the Lungs
Other
100

Is breathing voluntary or involuntary?

Involuntary

100
What gasses do we breathe in and out?

Breathe in: Oxygen

Breathe out: Carbon Dioxide

100

What are the small sacs in lungs called?

Alveoli

100

What is the first phase of breathing? Second phase?

First phase: Inhale

Second phase: Exhale

200

What is the respiratory system made up of?

Lungs and airways

200

What can cause lungs to turn brown?

Smoke and air pollution

200

Where does the gas exchange of oxygen and carbon dioxide happen?

The alveoli in lungs

200

What are the tubes connecting the nose and mouth to the lungs called?

Larynx and trachea