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