ATDP Respiratory System

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Across
  1. 5. the gas that we breathe OUT
  2. 7. the part of the airway also known as the windpipe that feels bumpy due to cartilage
  3. 8. the muscle that helps us inhale and exhale
Down
  1. 1. how the muscle allows lungs to force air out of the lungs
  2. 2. the smallest part of the respiratory system where gas exchange occurs
  3. 3. how the muscle allows lungs to expand and collect air
  4. 4. large tubes of the airway that connect trachea to left and right lungs
  5. 6. the gas that we breathe IN