Across
- 2. Valve between the left atrium and the left ventricle; bicuspid valve.
- 3. One of two lower chambers of the heart.
- 5. Largest artery in the body.
- 9. Inner lining of the heart.
- 12. abdnormal heart rhythm
- 13. Small vein.
- 14. Partition or wall dividing a cavity.
- 15. Contraction phase of the heartbeat.
Down
- 1. Small artery.
- 4. Record of the electrical activity of the heart.
- 6. Gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells
- 7. Muscular middle layer of the heart.
- 8. Beat of the heart as felt through the walls of the arteries.
- 10. Relaxation phase of the heartbeat.
- 11. Abnormal swishing sound caused by improper closure of the heart valves
- 13. Structure in veins or in the heart that temporarily closes an opening so that blood flows in only one direction.