Human Body Systems Crossword

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Across
  1. 3. bottom two chambers of heart which pump blood out
  2. 6. top two chambers of the heart which recieve blood
  3. 7. carry blood away from heart
  4. 9. when two different blood types mix, the recieving body will trigger an immune response and the blood will become thick
  5. 10. bottom muscle of the heart
  6. 12. important component of blood clotting. they contain thromboplastin
  7. 14. heart rate slows down
  8. 15. protect body from infection and live in blood
Down
  1. 1. transport oxygen through the body in blood
  2. 2. heart rate speeds up
  3. 4. 55% of blood. It carries nutrients,hormones, and proteins around the body
  4. 5. carry blood towards heart
  5. 8. nerve stress nerve which causes the heart to speed up
  6. 11. blood clot which dislodges and travels to a new place and forms a blockage
  7. 12. device which helps set heart rate
  8. 13. middle muscle which separates the two sides of the hear