Across
- 8. carry blood away from the heart
- 9. takes place in mid-to-late diastole
- 11. is continuous with endothelial lining of blood vessels
- 12. smaller diameter fibers; fewer gap junctions
- 13. relaxation
- 14. carry blood toward the heart
- 15. generates impulses about 75 times/minute
- 16. on the external surface of the heart
- 17. only electrical connection between the atria and ventricles
Down
- 1. visceral layer of the serious pericardium
- 2. lines the internal surface of the fibrous pericardium
- 3. contraction
- 4. ventricles relax
- 5. complete the pathway into the apex and ventricular walls
- 6. spiral bundles of cardiac muscle cells
- 7. atria relax and ventricles begin to contract
- 10. prevent backflow into ventricles when ventricles relax