Respiratory and Circulatory System

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Across
  1. 5. the system that circulates blood throughout the body
  2. 6. cells in blood that help you fight disease
  3. 9. mostly water, the medium through which blood cells and platelets are transported throughout the body
  4. 12. "windpipe"
  5. 14. branch off of the trachea, and are the main passageway of air into the lungs
  6. 16. the two lower chambers of the heart
  7. 17. moves up and down expanding and contracting the rib cage causing you to exhale or inhale
  8. 20. a pale yellow liquid that carries blood cells
  9. 21. carries blood depleted of oxygen back to the heart
Down
  1. 1. release substances that start the process of blood clotting
  2. 2. tiny air sacs in the lungs
  3. 3. the system for taking in oxygen and giving off carbon dioxide
  4. 4. blood cells that carry oxygen and carbon dioxide
  5. 7. transport blood throughout your body, and carry away waste
  6. 8. spongy,air-filled organs that are in the chest
  7. 10. a tiny blood vessel
  8. 11. carries oxygenated blood away from the heart
  9. 13. the regular throbbing of the arteries
  10. 15. fist sized organ that pumps blood throughout the body
  11. 18. two upper chambers of the heart
  12. 19. passageways to different chambers of the heart