Cardiovascular System Extra Credit

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Across
  1. 4. __________ are helpful when you get cut to aid in clotting the blood.
  2. 6. _________ carry the oxygen poor blood back to the heart.
  3. 7. Arteries carry oxygen _______ blood to the organs in your body.
  4. 8. The _____________ system that transports blood throughout the body.
  5. 11. The blood goes from the left atrium to the left ventricle, there it forces the blood out of the heart and into the ________.
  6. 13. Blood picks up oxygen in the _________ to become oxygen rich again.
  7. 14. The oxygen rich blood leaves the lungs and goes back into the heart in the _______ atrium.
Down
  1. 1. The blood leaves the right atrium and goes to the right __________ where it pushes blood to the lungs.
  2. 2. _________ open and shut to make sure that blood flows in one direction.
  3. 3. The liquid portion of the blood.
  4. 4. The heart ________ the blood.
  5. 5. The oxygen poor blood enters the heart in the right _________.
  6. 9. ________ is delivered by the red blood cells to the body.
  7. 10. The ___________ carry blood away from the heart to the body.
  8. 12. ________ blood cells help our bodies fight infections.