Across
- 4. voluntary muscles
- 8. muscles of the lower leg
- 9. muscles of the buttocks
- 10. movement of the body parts away from the middle of the body
- 11. upper back muscles
- 13. function of the muscle that hold bones tightly together
- 15. presence of oxygen
Down
- 1. the muscle that contracts when arm is flexed
- 2. causes muscle fatigue
- 3. shoulder muscles
- 5. absence of oxygen
- 6. abdominal muscles
- 7. the chemical form of raw energy in the body
- 12. moving a body part around an axis
- 14. released with muscle contraction