the respiratory system

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Across
  1. 2. system takes oxygen into the body and releases carbon dioxide and water.
  2. 3. water
  3. 4. carbon dioxide
  4. 5. mechanical process of taking air into and out of the body.
  5. 7. a pair of organ were oxygenated air gets oxygenated
  6. 8. air enters though this in the nose
  7. 11. air enters this below the nose.
  8. 12. dome shaped muscle that helps you breath in and out
Down
  1. 1. the large tubes that branch off the trachea into the lungs
  2. 6. passages inside of the nose lined with mucus membrane and filters air.
  3. 9. oxygen
  4. 10. aka windpipe tube that connects nose and mouth to lungs.