The Circulatory System

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Across
  1. 3. Protein that carries oxygen and carbon dioxide.
  2. 4. Separates right atrium and right ventricle, and prevents blood from moving backwards.
  3. 9. Upper chamber that collects oxygen poor blood from the body.
  4. 10. clotting A chemical reaction causing threadlike fibers, called fibrin, to form a sticky net that traps escaping blood cells and plasma.
  5. 11. Fighting agents- fight bacteria, viruses, and other foreign substances.
  6. 12. Separates left atrium and left ventricle and prevents blood from moving backwards.
  7. 14. Divides the heart into right and left sides.
  8. 16. Thick elastic walled vessels that carry blood AWAY from the heart.
  9. 17. Lower chamber that pumps oxygen rich blood to the body.
  10. 19. Irregular shaped cell fragments that clot bleed.
  11. 20. Contain one-way valves, vessels that carry bleed TO the heart.
  12. 21. Hollow, muscular organ that pumps blood throughout the body through the blood vessels.
  13. 22. Main artery that carries bleed from the heart to the body.
Down
  1. 1. Carries blood from from right ventricle to lungs.
  2. 2. Lower chamber that pumps oxygen poor bleed to the lungs to get oxygen.
  3. 5. Donut shaped cells that carry oxygen and carbon dioxide- contains hemoglobin.
  4. 6. The force exerted by blood against the walls of the blood vessels.
  5. 7. One celled (thin) vessels that connect arteries to veins.
  6. 8. Carries blood from lungs to left atrium.
  7. 13. Upper chamber that collects oxygen rich blood from the lungs.
  8. 15. Liquid portion of blood consisting mostly of water.
  9. 18. Returns bleed from body to right atrium.