Human Circulation

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Across
  1. 2. Liquid part of blood (6 letters)
  2. 4. Valve between the right atrium and right ventricle (7 letters)
  3. 5. Iron-containing protein in red blood cells (9 letters)
  4. 7. Carries oxygenated blood away from the heart (7 letters)
  5. 9. Type of blood vessel that carries blood back to the heart (8 letters)
  6. 10. Largest artery in the body (5 letters)
  7. 11. Valve between the left atrium and left ventricle (8 letters)
Down
  1. 1. Tiny blood vessels where oxygen and nutrients are exchanged (8 letters)
  2. 3. Upper chamber of the heart (4 letters)
  3. 5. Condition where blood pressure is consistently high (10 letters)
  4. 6. The scientific name for red blood cells (10 letters)
  5. 8. Process of blood clot formation (9 letters)