Across
- 2. extension of AV node, carries impulses from atria to ventricles
- 5. pathway carrying impulse from right atrium to left
- 6. irregular heartbeat
- 9. pathway carrying impulse from SA node to AV node
- 10. slow heartbeat
- 11. primary body system where heart electrical activity occurs
- 12. slows down impulse to allow atria to empty blood into ventricles
- 13. system that creates heart contractions with cardiac muscles
Down
- 1. pacemaker of the heart
- 3. system that pumps oxygen rich blood throughout the body
- 4. rapid heartbeat
- 7. system that brings in oxygen for the heart to supply the body
- 8. fibers that make up the terminal branches of the right and left branches of the AV bundle