Across
- 3. 3 Words. ideal ventricular systole over ideal ventricular diastole
- 4. sound caused by semilunar valves snapping shut
- 5. contraction of the heart's chambers
- 9. Two words. Muscle tissue that is unique to the heart
- 11. a device which emits an electrical discharge to restore a normal heart rhythm
- 12. relaxation of the heart's chambers
- 14. the invention of this equipment led to improved knowledge of the workings of the heart
- 15. 3 words. Valves which separate upper chambers of the heart from lower ones
- 16. higher pressure on the walls of arteries
Down
- 1. a blood clot which can block the blood flow through an artery
- 2. 3 words. From the SA node, signals have to pass through this to travel from the atria to the ventricles
- 6. sound caused by AV valves snapping shut
- 7. Two words. Device fitted into patients who have a malfunctioning SA node
- 8. also known as an electrocardiogram
- 10. also known as coronary heart disease
- 13. 3 words. Sometimes referred to as the pacemaker of the heart