The Lungs

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Across
  1. 4. what we breath in
  2. 7. this blood vessel lays on the alveoli
  3. 9. what we exhale
  4. 11. alveoli are found at the ends
  5. 12. this is the system your lungs are a part of
  6. 13. tiny air sacs that transfer gases in and out of the body
Down
  1. 1. your chest area
  2. 2. you have 2
  3. 3. when the diaphragm pulls down you do this
  4. 5. protects your lungs
  5. 6. another name for trachea
  6. 8. in your throat
  7. 10. this muscle pulls down your lungs so they can inflate
  8. 11. splits into two main branches to each lung