Across
- 3. The noise that is caused when blood does not flow smoothly through the heart
- 4. The natural pacemaker of the heart
- 5. ________ nervous system makesyour SA node work slower, which decreases your heart rate
- 10. ________ cells control your heart’s contractions
- 11. the amount of blood your heart pumps each minute
- 12. abnormal heart rhythms
Down
- 1. ________ artery bypass grafting is the most common type of heart surgery for adults heartbeat The heart conduction system controls your __________
- 2. _________ nervous system makes your SA node work faster, which increases your heart rate
- 6. a normal _______ is between 60 - 80 bpm
- 7. ________ cells carry the electric signals
- 8. The feeling of having a fast-beating, fluttering or pounding heart
- 9. This happens when a part of the heart muscle doesn't get enough blood