Across
- 4. – Abnormally fast heart rate.
- 5. – Persistently high blood pressure.
- 9. – Chest pain due to reduced blood flow to heart muscle.
- 11. – Reduced blood supply to tissues, causing oxygen shortage.
- 12. – Test recording the electrical activity of the heart.
- 13. – The muscular layer of the heart wall responsible for contraction.
Down
- 1. – Irregular heartbeat or abnormal cardiac rhythm.
- 2. – Abnormally slow heart rate.
- 3. – Listening to heart sounds using a stethoscope.
- 6. – The smooth inner lining of the heart chambers.
- 7. – Narrowing of a heart valve or vessel.
- 8. – Death of tissue due to prolonged lack of blood supply.
- 10. – Double-layered sac that surrounds and protects the heart.