Across
- 7. This study is a recording of the flow of electrical impulses that travel through the heart.
- 8. During this phase of the heartbeat, the heart contracts and pumps blood.
- 10. The ___________ cycle includes the events on a heartbeat.
- 12. These blood vessels carry blood away from the heart.
Down
- 1. Heart condition where the heart beats slower than normal.
- 2. The ____________ node starts each heartbeat. Its also known as the pacemaker.
- 3. The sounds in the heart are caused by the opening and closing of its __________.
- 4. One of the main factors that lead to high blood pressure.
- 5. During this phase of the heartbeat, the heart relaxes and fills with blood.
- 6. These blood vessels that bring blood to the heart.
- 9. Heart condition that causes a rapid heart rate.
- 11. The orderly passage of electrical current sequentially through the heart muscle, changing it, cell by cell.