Across
- 7. The double-walled sac that the heart sits in and contains serous fluid between the layers to prevent friction
- 8. What is the first layer of the heart wall?
- 10. the pacemaker of the hear
- 11. Rapid Heartbeat (over 100 beats per minute)
- 13. Heart cells die because of prolonged oxygen deprivation
- 14. Top part of the heart that is broad
- 15. Set of valves that guards the bases of the 2 large arteries leaving the ventricular chambers
Down
- 1. Lack of blood supply to the heart muscle
- 2. A rapid uncoordinated shuddering of the heart muscle, a major cause of death in heart attacks
- 3. The pointed end of the heart that rests on the diaphragm
- 4. Slow Heartbeat (less than 60 beats per minute)
- 5. What is the right AV node called?
- 6. What is the second layer of the heart wall?
- 9. What is the third layer of the heart wall?
- 12. How many hollow chambers does the heart has?