10.7 Pertaining to the Heart

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Across
  1. 4. sac surrounding the heart
  2. 6. heartbeat
  3. 7. the heart lies in this cavity
  4. 8. largest artery
  5. 10. arteries supplying blood to head and neck
  6. 11. infarction (heart attack)
  7. 13. one of the upper chambers of the heart
  8. 15. phase of heartbeat (relaxation)
  9. 16. one of the lower chambers of the heart
Down
  1. 1. waxy substance narrowing arteries
  2. 2. quarts of blood in the body
  3. 3. only artery that carries oxygen-deficient blood
  4. 5. records electrical changes in the heart
  5. 9. not enough oxygen
  6. 12. small branches of arteries
  7. 14. phase of heartbeat (contraction)
  8. 17. a waste product