Class II

_________ is not good for your lungs.
  1. Exercising
  2. Singing
  3. Smoking
  4. Yelling
When you inhale, your lungs:
  1. Inflate
  2. Turn purple
  3. Deflate
  4. Do a dance
Your body couldn’t breathe without this system. Which one is it?
  1. Perspiration system
  2. Respiratory system
  3. Photosynthesis
  4. Urinary system
What is the name of the tiny air sacs in your lungs?
  1. Bronchioles
  2. Ravioli
  3. Alveoli
  4. Bronx
The tiny hairs that keep mucus and dirt out of your lungs are called:
  1. Lung hairs
  2. Stubble
  3. Bronchioles
  4. Cilia
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