Circulatory vocab

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Across
  1. 4. Large vessel
  2. 5. Low red blood cell count
  3. 7. carry blood away from heart
  4. 9. thickest wall of heart
  5. 11. covering the myocardium
  6. 12. forming a plug
  7. 13. abnormal flow of blood
Down
  1. 1. beating action of heart
  2. 2. Heart beating slower than normal
  3. 3. Heart isn't contracting properly
  4. 6. chamber on left side of heart
  5. 8. transports oxygen
  6. 10. layer of heart