SCI

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Across
  1. 2. circulation between the heart and lungs
  2. 5. helps in breathing by contracting and relaxing
  3. 6. connecting the mouth and nasal passages to the esophagus
  4. 8. The two large airways that lead from the trachea to the lungs
  5. 9. Small air sacs in the lungs where gas exchange occurs
  6. 10. Blood vessels that carry blood back to the heart
  7. 11. connects the larynx to the bronchi
  8. 14. voice box
  9. 15. Organs responsible for the exchange of oxygen and carbon dioxide
  10. 18. flap of tissue that covers the windpipe
  11. 19. responsible for clotting
Down
  1. 1. Smaller airways that branch off from the bronchi within the lungs
  2. 3. Tiny blood vessels where gas exchange occurs
  3. 4. liquid component of blood, containing water, salts, and proteins
  4. 7. protein in red blood cells that carries oxygen
  5. 10. lower chamber of the heart that pumps blood out to the lungs or body
  6. 12. upper chamber of the heart that receives blood
  7. 13. largest artery in the body
  8. 16. The muscular organ that pumps blood throughout the body
  9. 17. Blood vessels that carry oxygen-rich blood away from the heart