Circulatory system

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Across
  1. 2. Circulation of blood between heart and lungs
  2. 5. Pressure in the arteries when the ventricles contract
  3. 7. The only vein that carries oxygenated blood.
  4. 9. Takes oxygenated blood from left ventricle to body.
  5. 10. fights infection by engulfing germs.
  6. 11. Activity that increases heart rate.
  7. 12. Pressure produced when heart relaxes.
  8. 14. Circulation of blood between heart and rest of body.
  9. 15. Protein that binds with oxygen on RBC.
Down
  1. 1. Artificial device that regulates heart rate.
  2. 3. Sound produced when bicuspid and tricuspid valve close.
  3. 4. Shape of red blood cells.
  4. 6. Side of the heart with oxygenated blood.
  5. 7. Part of cell that clots blood.
  6. 8. Keeps blood flowing in one direction.
  7. 13. Side of the heart with deoxygenated blood.