Across
- 1. communication junctions between cardiac muscle cells
- 3. heart's ability to control its own contractions
- 4. blood flow is blocked, tissue dies
- 6. extra sound caused by leaky/stuffed valves
- 7. middle muscle layer, pumps blood through the body
- 8. pacemaker that initiates contractions
- 10. moves blood between the heart and rest of body
Down
- 2. measures the heart's electrical activity
- 5. moves blood between the heart and lungs
- 9. double-layered membrane, supports the heart, prevents overfilling