Circulatory System Crossword

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Across
  1. 5. The organ system that exhales carbon dioxide and inhales oxygen.
  2. 7. A type of blood cell that carries oxygen to organs
  3. 9. liquid that the organism floats in; mainly water.
  4. 11. The main part of the respiratory system that oxygenates blood for the organism.
  5. 12. The organ system that circulates blood throughout the body.
Down
  1. 1. A type of cell that fights off foreign invaders in the bloodstream
  2. 2. A blood vessel that carries oxygenated blood away from the heart and throughout the body.
  3. 3. A blood vessel that carries deoxygenated blood to the lungs.
  4. 4. Organ made up of muscle tissue that pumps blood throughout the body.
  5. 6. One of the two upper chambers in your heart.
  6. 8. Connects the body's organs to the arteries and veins.
  7. 9. Part of a cell that stops blood loss by creating blood clots.
  8. 10. One of the two lower chambers in your heart.