cardiovascular

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Across
  1. 2. Contraction of a heartbeat
  2. 6. Abnormal swishing sound
  3. 9. Smallest blood vessels
  4. 10. Largest type of blood vessels
  5. 12. Beat of heart felt through walls of an artery
  6. 13. Gas that enters blood through the lungs
Down
  1. 1. Weighs less than one pound
  2. 2. Partion dividing a cavity
  3. 3. Relating to the lungs
  4. 4. Largest artery in the body
  5. 5. Chambers of the heart
  6. 7. Relaxation phase of a heartbeat
  7. 8. Small vein
  8. 10. lower tip of the heart
  9. 11. Smooth layer of endothelial cells