Cardiovascular System Independent Study Crossword

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Across
  1. 1. one of two lower chambers of the heart
  2. 3. heart muscle
  3. 4. Microscopic vessel through which exchanges take place between the blood and cells of the body
  4. 6. A hollow, muscular organ that pumps blood throughout the body.
  5. 8. An iron-containing protein in red blood cells that reversibly binds oxygen.
  6. 11. blood clotting
  7. 14. inner lining of the heart
  8. 15. Blood vessels that carry blood back to the heart
Down
  1. 2. the specialized epithelial tissue that lines the blood and lymph vessels, body cavities, glands, and organs
  2. 5. carry blood away from the heart
  3. 7. the smallest kind of vein
  4. 9. gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells
  5. 10. Beat of the heart as felt through the walls of the arteries.
  6. 12. Divides the right and left chambers of the heart
  7. 13. Double-layered membrane surrounding the heart.