Across
- 3. a small mass of specialized tissue located in the right atrium that acts as the pacemaker of the heart
- 6. The upper chambers of the heart.
- 7. conduction fibers that conduct impulses through the ventricles of the heart
- 10. sound made by the closing of the heart valves when functioning properly
- 13. an extra sound heard during a heartbeat, often described as a whooshing or swishing sound, that can be detected with a stethoscope
- 16. a condition where the heart beats faster than normal, generally defined as over 100 beats per minute at rest
- 17. blood vessels that carry blood away from the heart
- 18. Membrane that surrounds the heart
- 19. One of the upper chambers.
- 20. (also known as the bicuspid valve) Between the left atrium and left ventricle.
Down
- 1. Carries blood from the heart to the lungs.
- 2. inner layer of the heart
- 4. Blood vessels that carry blood towards the heart
- 5. Between the left ventricle and the aorta.
- 8. condition where the heart rate is abnormally slow, typically below 60 beats per minute (bpm) at rest
- 9. outer layer of the heart
- 11. absence of a normal heart rhythm
- 12. The lower chambers of the heart.
- 14. The main artery carrying blood from the heart.
- 15. Between the right atrium and right ventricle.]