The Circulatory System

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Across
  1. 2. A tiny blood vessel where substances pass to and from the blood
  2. 7. A heart chamber that receives blood from the body
  3. 8. A blood component that helps form clots to stop bleeding
  4. 10. A heart chamber with thick walls that pumps blood to the lungs
  5. 12. A tiny blood vessel where substances pass to and from the blood
  6. 13. A tube that carries blood away from the heart
  7. 14. “_______ ________ cell”: A blood component that transports oxygen
  8. 16. The fluid pumped by the heart around the circulatory system
  9. 17. Having high levels of oxygen
  10. 19. “_______ ________ cell” : A blood component that helps protect the body from infection
  11. 20. A heart chamber that receives blood from the lungs
Down
  1. 1. A tube that carries blood back to the heart
  2. 3. A heart chamber with thick walls that pumps blood to the body
  3. 4. The movement of blood around the body
  4. 5. The movement of molecules from an area of high to low concentration
  5. 6. A muscular organ that pumps blood around the body
  6. 9. Having low levels of oxygen
  7. 11. A structure that only allows flow in one direction
  8. 15. plasma A blood component made of water with dissolved nutrients and wastes
  9. 18. The movement of molecules from an area of high to low concentration