Breathing and exchange of gases

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Across
  1. 3. dome-shaped muscle involved in breathing
  2. 7. process of taking in air and releasing CO₂
  3. 11. enzyme that helps convert CO₂ into bicarbonate
  4. 13. organ system responsible for respiration
  5. 14. volume of air inhaled or exhaled during normal breathing
  6. 15. respiratory disorder caused by damage to alveolar walls
  7. 16. part of the brain that regulates respiratory rhythm
Down
  1. 1. gas that diffuses from tissues to alveoli
  2. 2. process by which gases move across membranes
  3. 4. flap that prevents food from entering the windpipe
  4. 5. network of tubes in insects for respiration
  5. 6. maximum volume of air a person can breathe in after forced expiration
  6. 8. red pigment in RBCs that binds oxygen
  7. 9. tube that connects the larynx to the bronchi
  8. 10. condition caused by inflammation of bronchi and bronchioles
  9. 12. structure where gas exchange occurs