Breathe In, Breathe Out

The air you breathe goes into your _____

On average, how many times a minute do you breathe when you are resting?

• 20 times

• 40 times

• 60 times

• 80 times

What protects your lungs?

• Kidneys

• Heart
• Liver
• Rib cage

Name the gas that the lungs bring in that you need to live?

Soft little tubes inside the lungs are called?

• Bronchial tubes

• Trachael tubes

• Wind tubes

• Oxygen tubes

Sticky liquid in the bronchial tubes is called?

What does mucus catch when you breathe?

• Oxygen

• Dust and germs

• Carbon dioxide
• Nitrogen

The _______ are tiny air sacs at the end of the bronchioles?

Place in order the direction of air flow when you breathe in:

• Nose/mouth -> trachea/windpipe -> bronchial tubes -> bronchioles -> alveoli

• Trachea/windpipe -> nose/mouth -> bronchial tubes -> bronchioles -> alveoli

• Nose/mouth -> trachea/windpipe -> bronchioles -> bronchial tubes -> alveoli

• Alveoli -> bronchioles -> bronchial tubes -> trachea/windpipe -> nose/mouth

Your blood picks up fresh _____ from the air you breathe and drops off _____.

• carbon dioxide, oxygen

• carbon dioxide, nitrogen

• nitrogen, oxygen

• oxygen, carbon dioxide