Across
- 4. the muscle that is relaxing in a movement
- 7. forms the long axis of the body
- 9. part of the respiratory system
- 10. preferred source of fuel during exercise
- 11. muscle fibers used for anaerobic activities
- 15. attaches bone to bone
- 16. joint type that is free and movable
Down
- 1. skeleton that consists of upper and lower limbs
- 2. Q = SV x HR
- 3. energy system used in first 10 seconds
- 5. receive blood returning from the body
- 6. muscle fibers used for aerobic activities
- 8. pumps blood away from the heart
- 12. the muscle that is contracting in a movement
- 13. attaches muscle to bone
- 14. the muscle that pumps blood around the body