Circulatory System

12345678910111213141516171819
Across
  1. 6. Brings blood back to the heart.
  2. 8. Blood with oxygen.
  3. 9. The heart, blood vessels, and blood are all part of the ____ system.
  4. 10. The largest artery in the body.
  5. 13. The place where nutrients enter the bloodstream.
  6. 16. The part of the blood that fights off bacteria and viruses.
  7. 17. The heart is made of this type of muscle.
  8. 18. The liquid part of the blood that contains, nutrients, water, minerals, proteins, and sugar.
  9. 19. The number of liters of blood in the body.
Down
  1. 1. The place where oxygen enters the blood and carbon dioxide leaves the blood.
  2. 2. Blood without oxygen.
  3. 3. The part of the blood that is responsible for clotting and forming a scab.
  4. 4. The protein that allows oxygen to stick to a red blood cell.
  5. 5. The number of chambers in the heart.
  6. 7. The Circulatory System ___ nutrients, water, oxygen, and waste products around the body.
  7. 9. A small blood vessel that connects veins and arteries.
  8. 11. Valves in this heart allow blood to flow in ___ direction.
  9. 12. The heart is about the size of your ___.
  10. 14. Carry blood AWAY from the heart.
  11. 15. The part of the blood that is responsible for carrying oxygen.