Across
- 1. Partition or wall dividing a cavity; such as between the right and left atria (interatrial septum) and right and left ventricles (interventricular septum).
- 8. One of two upper chambers of the heart.
- 11. Smallest type of blood vessel.
- 12. Abnormal swishing sound caused by improper closure of the heart valves
- 13. Relaxation phase of the heartbeat.
- 15. Innermost lining of blood vessels.
- 16. Beat of the heart as felt through the walls of the arteries.
Down
- 2. inner lining of the heart.
- 3. Contraction phase of the heartbeat.
- 4. Double-layered membrane surrounding the heart.
- 5. Instrument to measure blood pressure.
- 6. Largest artery in the body.
- 7. One of two lower chambers of the heart.
- 9. Muscular middle layer of the heart.
- 10. Structure in veins or the heart temporarily closes an opening so blood flows in only one direction.
- 14. Gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells