THE CIRCULATORY SYSTEM.

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Across
  1. 2. The upper left chamber of the heart that receives oxygenated blood from the lungs.
  2. 5. The collective term for arteries, veins, and capillaries.
  3. 6. Cells in the blood that help fight infections.
  4. 7. A condition characterized by high blood pressure.
  5. 8. Blood vessels that carry blood toward the heart.
  6. 9. A sudden interruption in the blood supply to the brain.
  7. 10. Tiny blood vessels where the exchange of oxygen, nutrients, and waste occurs between blood and tissues.
  8. 12. Blood vessels that carry blood away from the heart.
  9. 13. The fluid component of blood that carries cells and nutrients.
  10. 14. Cells in the blood responsible for transporting oxygen.
  11. 15. The lower right chamber of the heart that pumps deoxygenated blood to the lungs.
  12. 16. A condition where the body cannot properly regulate blood sugar levels.
  13. 17. The vein that returns deoxygenated blood from the body to the heart.
Down
  1. 1. The muscular organ that pumps blood throughout the body.
  2. 2. The lower left chamber of the heart that pumps oxygenated blood into the aorta.
  3. 3. A disease where the coronary arteries become narrowed or blocked.
  4. 4. The upper right chamber of the heart that receives deoxygenated blood from the body.
  5. 11. Fragments in the blood that help in clotting.
  6. 18. The largest artery in the body, carrying oxygen-rich blood from the heart to the rest of the body.