The Cardiovascular System

123456789101112131415161718192021
Across
  1. 3. a surgical connection between two structures
  2. 5. a blood vessel that carries blood from the heart to tissues and organs
  3. 7. one of two upper chambers in the heart that receives blood
  4. 10. makes electrical signal that causes heart chambers to contract
  5. 12. the product of heart rate and stroke volume
  6. 13. smallest blood vessels
  7. 15. a small blood vessel that receives blood from the capillaries
  8. 17. a fluid filled cavity in the heart or brain
  9. 19. when the heart muscle relaxes
  10. 20. the widening of blood vessels
  11. 21. a blood vessel that carries blood to the heart form tissues and organs
Down
  1. 1. helps pump blood back to the heart
  2. 2. narrowing of blood vessels
  3. 4. favorite color is blue
  4. 6. a protective, fluid filled sac that surrounds the heart
  5. 8. a special muscle tissue that forms the heart
  6. 9. creates blood pressure
  7. 11. flaps that act as gate for blood
  8. 14. small blood vessels
  9. 16. the outermost protective layer of the heart
  10. 18. period of contraction of the ventricles