Across
- 4. pulmonary edema
- 5. upper chambers of the heart
- 6. nervous system fight or flight
- 8. lower chambers of the heart
- 9. blood cells carry o2 and co2
- 10. node the heart generates its own electrical impulse, starting with..
Down
- 1. allows spontaneous contraction without a stimulus from a nerve source
- 2. fast heart rate that starts on the ventricular side
- 3. heart rate over 100 BPM
- 7. side of heart that's more muscular