Circulatory System Crossword

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Across
  1. 5. - The largest artery in the body, carrying blood from the heart to the rest of the body.
  2. 6. - Small blood cells that help stop bleeding by forming clots.
  3. 9. - The muscular organ that pumps blood throughout the body.
  4. 11. - The throbbing of blood as it moves through the arteries.
  5. 13. - A gas carried by blood to body tissues, needed for energy.
  6. 14. System - Another name for the circulatory system, which includes the heart and blood vessels.
  7. 16. - Flaps in the heart and veins that keep blood flowing in one direction.
  8. 18. Blood Cells - Blood cells that fight infections.
  9. 19. Dioxide - A waste gas removed from the body by the blood.
Down
  1. 1. - Blood vessels that carry blood away from the heart.
  2. 2. - The liquid part of blood that carries cells and nutrients.
  3. 3. - Tiny blood vessels where oxygen and nutrients are exchanged with cells.
  4. 4. - The two lower chambers of the heart that pump blood out.
  5. 7. - A protein in red blood cells that carries oxygen.
  6. 8. - Blood vessels that carry blood back to the heart.
  7. 10. Vessels - Tubes that carry blood; includes arteries, veins, and capillaries.
  8. 12. Blood Cells - Blood cells that carry oxygen throughout the body.
  9. 15. - The continuous movement of blood through the heart and blood vessels.
  10. 17. - The two upper chambers of the heart that receive blood.
  11. 20. - The fluid that carries oxygen, nutrients, and waste products around the body.