Across
- 2. Blood depleated of oxygen
- 3. A resting HR lower than 60bpm
- 6. The electrical impulse responsible for stimulating the heart to contract
- 7. Events of one heart beat
- 10. 220- age
- 11. The heart generates its own electrical impulse therefore it is............
Down
- 1. Capacity of heart ventricles to contract
- 4. Blood ejected out of the heart ventricles per beat
- 5. Increase in size of heart muscle wall
- 8. Exercise performed at an intensity below an athlete's maximal aerobic capacity
- 9. This lasts around 0.5 seconds and is the relaxation phase