Cardiovascular System

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Across
  1. 4. this is usually A, AB, or O
  2. 7. when blood supply to the heart is cut off, can be deadly
  3. 9. deposits in the arteries
  4. 10. go TO heart, O2 poor, CO2 rich
  5. 12. tiny vessels where gas exchange happens
  6. 14. the number of times your heart beats per minute
  7. 15. hemoglobin protein, iron rich. Carries O2 and CO2
  8. 16. weakened blood vessel wall, can be deadly
  9. 17. blood cells immune cells
  10. 19. the pressure your heartbeats exert on your blood vessels
  11. 20. muscle the size of your fist
  12. 21. this lines all your blood vessels and helps move blood
Down
  1. 1. immune cells
  2. 2. the type of impulse that makes the heart beat
  3. 3. 55% of blood. Carries water, salts, enzymes. Takes nutrients, hormones and proteins to the body parts. Absorbs waste from cells.
  4. 5. 55% of blood. Carries water, salts, enzymes. Takes nutrients, hormones and proteins to the body parts. Absorbs waste from cells.
  5. 6. this is a fat-like substance your body uses to make hormones, bile, and many other things
  6. 8. Cell fragments that clot tears in skin or blood vessels
  7. 11. ruptured or blocked blood vessel going to the brain
  8. 13. go AWAY from heart, O2 rich
  9. 14. Cell fragments that clot tears
  10. 18. blood cells hemoglobin protein, iron rich. Carries O2 and CO2