Respiratory System Crossword

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Across
  1. 2. Cavity where lungs sit
  2. 4. Leads into the stomach and carries food to be digested.
  3. 5. Microscopic hair-like structures that line the nasal cavity to filter air breathe.
  4. 10. the metabolic processes whereby certain organisms obtain energy from organic molecules
  5. 13. Aka exhalation
  6. 14. Third division of the pharynx
  7. 15. A triangular slit between the vocal cords; closes to prevent material from entering the trachea while swallowing
  8. 16. Also known as the windpipe
  9. 17. Air sacs within the lungs
  10. 19. referring to the lungs
  11. 21. Aka exhalation
  12. 23. The process of oxygen utilization and carbon dioxide production at the cellular level
  13. 24. used to assess how well your lungs work
  14. 25. Region between the lungs in the chest cavity. Contains the trachea, heart, lymph nodes, aorta, esophagus, and bronchial tubes
  15. 26. Soft, spongy, cone-shaped organs in the thoracic cavity
  16. 28. A deficiency of O2 reaching the tissues
  17. 29. protective secretion of the mucous membranes
Down
  1. 1. A hollow space behind the nose
  2. 3. First division of the pharynx
  3. 6. Muscle beneath the lungs which contracts and relaxes during respiration
  4. 7. Voice box
  5. 8. The cartilage in the nose that separates the nostrils.
  6. 9. Opening through the nose carrying air into the nasal cavities
  7. 11. Second division of the pharynx
  8. 12. Protein in red blood cells that carries oxygen
  9. 18. Stops food from entering the airway
  10. 20. Airways in the lungs which lead to bronchioles and alveoli
  11. 22. Smallest of the blood vessels through which exchanges take place between the blood and cells of the body
  12. 27. Supported internally by bone and cartilage, has two nostrils