Cardiac Terms 1

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Across
  1. 2. where the great vessels enter and leave the heart
  2. 5. ventricular contraction
  3. 7. two upper chambers of the heart
  4. 10. ability to contract without stimulation
  5. 12. thin layer covering the heart surface
  6. 13. period of cardiac muscle relaxation
Down
  1. 1. space where the heart resides
  2. 3. double-walled sac surrounding the heart
  3. 4. two lower chambers of the heart
  4. 6. the heart's inner layer
  5. 8. the study of the heart
  6. 9. heart's middle layer
  7. 11. pointed end of the heart