The Circulatory System

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Across
  1. 1. This blood vessel is found between arteries and veins.
  2. 5. What is the name of the pigment in red blood cells?
  3. 7. What is the organ called that is often referred to as the pump?
  4. 8. What is the name given to the muscular wall that separates the two sides of the heart?
  5. 9. A wave of pressure felt in the arteries is called what?
  6. 10. What do platelets prevent the loss of?
  7. 11. There are two blood circuits, the body is one, what is the other?
  8. 12. What happens to the speed of the heart rate when we exercise?
  9. 14. What is the liquid part of the blood called?
Down
  1. 2. What do white blood cells fight?
  2. 3. Plasma regulates something in the body. What is it?
  3. 4. This ensures that blood only flows in one direction.
  4. 6. Which side of the heart wall is thicker?
  5. 9. Artery Most of the arteries carry oxygen rich blood but there is one exception, what is it?
  6. 13. Does an artery carry blood to or away from the heart?