Circulatory System

3. The Circulatory System ___ nutrients, water, oxygen, and waste products around the body.
4. Blood with oxygen.
7. A small blood vessel that connects veins and arteries.
8. Valves in this heart allow blood to flow in ___ direction.
9. The liquid part of the blood that contains, nutrients, water, minerals, proteins, and sugar.
12. The protein that allows oxygen to stick to a red blood cell.
15. The number of liters of blood in the body.
16. The heart is made of this type of muscle.
17. The part of the blood that is responsible for clotting and forming a scab.
19. The part of the blood that is responsible for carrying oxygen.

1. The part of the blood that fights off bacteria and viruses.
2. The largest artery in the body.
3. Blood without oxygen.
5. Brings blood back to the heart.
6. The place where nutrients enter the bloodstream.
10. The number of chambers in the heart.
11. The heart, blood vessels, and blood are all part of the ____ system.
13. The heart is about the size of your ___.
14. Carry blood AWAY from the heart.
18. The place where oxygen enters the blood and carbon dioxide leaves the blood.