Across
- 2. attaches muscle to bone
- 5. fiber is covered by light and dark stripes
- 7. contain many important energy molecules
- 8. The only voluntary muscle tissue in the body
- 10. bundle of skeletal muscle fibers that's dense
- 12. protein filament that controls contractions
Down
- 1. the primary function of the muscular system
- 3. muscle that straightens a joint
- 4. Muscle located inside of organs
- 5. cell membrane of muscle
- 6. Brief contraction before relaxation
- 7. muscle who bends a joint
- 9. boundary of a sacomere
- 10. Inability for a muscle to contract
- 11. Muscle only located in the heart