Across
- 4. heart rate x stroke volume
- 6. support for a life time
- 7. rate at which your heart pumps blood
- 8. weights of muscles
- 9. body works harder than should
- 10. electrocardiogram
Down
- 1. how fast heart can supply o2
- 2. running
- 3. blood your heart pumps
- 5. pressure blood is exerted