Across
- 2. Central Body of the Muscle
- 3. muscles attached to the bone of skeleton
- 7. muscle the moves in opposite direction of the pair
- 8. molecule required for energy in the muscles
- 9. Muscles found only in the heart
- 12. Protein filaments that are thin
- 14. Rod Like filaments in muscles
- 15. functional unit of the muscle cell
- 16. Muscles that are used excessively will do this
- 18. Muscle found in walls of intestines
- 20. muscle on the back of the upper arm
- 21. Separates and surrounds fascicles
- 22. Cytoplasm of the muscle cell
Down
- 1. characteristic of muscles to return to original length when relaxed
- 4. Bundles of Muscle Fibers
- 5. Surrounds each individual muscle fiber
- 6. Build up of this in the muscle results in muscle fatigue
- 10. Muscle that produces movement in single direction
- 11. The muscle on the front upper arm
- 13. Muscles that are not used
- 17. Outermost layer of muscle that surrounds muscle
- 19. Thick protein filaments in muscle that slides past actin