Integumentary, Circulatory, and Respiratory Systems

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Across
  1. 4. valve that controls blood flow from right atrium to right ventricle
  2. 7. blood cells that fight disease
  3. 10. the system that exchanges gases in and out of the body
  4. 12. piece of cartilage that covers trachea when eating so that food does not enter into trachea
  5. 13. chamber of the heart where oxygenated blood enters from the lungs
  6. 14. the system that covers interior and exterior body organs
  7. 15. fluid portion that makes up most of the blood's volume
  8. 16. the system that transport blood and oxygen throughout the body
  9. 17. muscular organ that pumps blood
  10. 18. sacs in the lungs where oxygen and carbon dioxide are exchanged
Down
  1. 1. protein molecules in blood that carry oxygen to the cells
  2. 2. outermost layer of the skin
  3. 3. blood vessels that carry blood away from the heart
  4. 5. chamber of heart that receives deoxygenated blood
  5. 6. small blood vessels that connects veins to arteries and exchange nutrients and wastes
  6. 8. tube that air passes through from larynx to bronchi
  7. 9. large blood vessel that carries blood to the rest of the body
  8. 11. blood vessels that carry blood to the heart
  9. 12. process of removing carbon dioxide air from the body
  10. 19. pair of the main organs of the respiratory system