Across
- 3. Largest type of blood vessel; carries blood away from the heart to all parts of the body.
- 6. Gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells
- 8. bundle Specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them.
- 10. Muscular middle layer of the heart.
- 13. Relaxation phase of the heartbeat.
- 14. Beat of the heart as felt through the walls of the arteries
- 15. Abnormal swishing sound caused by improper closure of the heart valves
Down
- 1. Small artery.
- 2. Double-layered membrane surrounding the heart.
- 4. Record of the electrical activity of the heart.
- 5. Largest artery in the body.
- 7. Inner lining of the heart.
- 8. Largest artery in the body.
- 9. Contraction phase of the heartbeat.
- 11. Partition or wall dividing a cavity; such as between the right and left atria
- 12. Smallest type of blood vessel. Materials pass to and from the bloodstream through the thin capillary walls.