The heart

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Across
  1. 2. number of times heart beats per minute
  2. 5. valve between left atrium and ventricle
  3. 7. sends blood from heart to lungs
  4. 8. valve between right atrium and ventricle
  5. 9. carries blood away from the heart
  6. 11. brings back oxygenated blood from lungs
  7. 12. carries blood towards the heart
  8. 13. sends blood to the whole body
Down
  1. 1. smallest type of blood vessel
  2. 3. lower chambers of the heart
  3. 4. upper chambers of the heart
  4. 6. amount of blood leaving the heart per beat
  5. 10. superior and inferior