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