The Heart and Circulation

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Across
  1. 3. The word we use to say the heart chambers get bigger and can fill with blood
  2. 7. Supplies the heart itself with oxygen
  3. 8. An awesome Bio teacher :)
  4. 9. Brings deoxygenated blood to the heart
  5. 11. Blood vessel carrying oxygenated blood away from the heart
  6. 12. Bottom chamber of the heart
Down
  1. 1. The only vein to carry oxygenated blood
  2. 2. The word we use to say the heart chambers are getting smaller and forcing blood to move
  3. 4. Has a thick wall to withstand the high pressure
  4. 5. Very small and thin blood vessel so oxygen can diffuse out
  5. 6. The only artery that carries deoxygenated blood
  6. 9. A blood vessel with valves to keep blood flowing in the correct direction
  7. 10. Top chamber of the heart