Circulatory System Crossword Puzzle

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Across
  1. 2. pumps blood throughout the body
  2. 4. blood type O is known as the universal _________ since it can donate blood to all other blood types
  3. 6. are fragments of cells that help stop cuts from bleeding
  4. 8. is part of your immune system; helps your body fight disease
  5. 10. the fluid in which blood cells are transported around the body
  6. 13. A, B, AB, or O
  7. 14. blood type AB is known as the universal __________ since it can receive any type of blood
  8. 15. this English doctor discovered that blood only flows one-way (last name only)
  9. 17. the number of chambers in a human heart
Down
  1. 1. carries oxygen, contains hemoglobin, , and are disc-shaped
  2. 3. this kind of blood vessel is so thin that blood cells have to flow in single-file!
  3. 5. this kind of chamber in the heart receives blood from the body or lungs
  4. 7. this kind of chamber in the heart pumps blood out to the body or lungs
  5. 9. this fluid is like the transportation system for your body's cells
  6. 11. blood flows away from your heart in this kind of blood vessel
  7. 12. blood flows toward your heart in this kind of blood vessel
  8. 16. the largest blood vessel in your body