The Circulatory system

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Across
  1. 4. A lock of oxygen and nutrients that causes the heart tissue to die.(two words)
  2. 5. Pumps blood from the heart to the lungs. (two words)
  3. 7. A buildup of fat, cholesterol, or calcium that can lead to a heart attack.
  4. 11. Component of blood that helps with clotting.
  5. 12. The walls of veins are much _________ than the walls of arteries because veins do not needs to deal with as much pressure.
  6. 13. These prevent blood from flowing the wrong way in veins.
  7. 14. The number of chambers in the heart.
  8. 17. A heart X-ray.
  9. 20. These blood vessels carry blood towards the heart.
  10. 21. The largest portion of blood is this component.
  11. 22. Most muscular chamber of the heart.
  12. 23. This type of blood cell is used to carry gasses to and from the working tissues.
Down
  1. 1. The main pump of the circulatory system.
  2. 2. The type of muscle in the heart
  3. 3. Blood vessels where gas exchange occurs.
  4. 6. The arteries that bring nutrients and oxygen to the heart itself.
  5. 8. This type of blood cell is used to fight infection.
  6. 9. The blood transports oxygen and these to the body.
  7. 10. Blood coming back from the lungs enters the heart here. (two words)
  8. 15. A healthy reading for this is 120/80.
  9. 16. A moving line that shows the electrical activity in the heart.
  10. 17. The energy carrying molecule in the body that help keeps the body alive.
  11. 18. Thick walled blood vessels that can handle lots of pressure.
  12. 19. The type of blood found in the right side of the heart.
  13. 21. Tells you how fast your heart is beating in bpm.