Respiratory System

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Across
  1. 2. you inhale oxygen and exhale carbon
  2. 4. a tube that is held open by C-shaped rings of cartilage
  3. 5. this is where gas exchange occurs in the lungs
  4. 7. alveoli look like bunches of what type of fruit
  5. 9. a tube-like passageway at the top of the throat that receives air, food, and liquids from the mouth or nose
  6. 10. the main organs of the respiratory system
Down
  1. 1. two narrower tubes that lead into the lungs
  2. 3. a large muscle below the lungs that contracts and relaxes as air moves into and out of your lungs
  3. 6. the parts of the respiratory system work together and supply the body with _____
  4. 8. this organ is part of the digestive and respiratory system