Across
- 2. lower tip of the heart
- 6. muscular, middle layer of the heart
- 8. wall dividing a cavity
- 12. heart rhythm originating in the SA node and traveling through the heart
- 13. cyan/o
- 14. smallest blood vessel
- 15. coron/o
- 16. one of two upper chambers of the heart
Down
- 1. double-layered membrane surrounding the heart
- 3. relaxation phase of the heartbeat
- 4. small vein
- 5. largest type of blood vessel
- 7. flow of blood from the heart to the lungs and back to the heart
- 9. sinoatrial node
- 10. brachi/o
- 11. beat of the heart felt through the walls of the arteries