Across
- 3. Found in hollow muscles
- 5. Under mental control
- 6. 40-50% of body weight
- 9. Fights pull of gravity
- 12. Muscles that relax during movement
- 13. Produces movement at joint
- 14. Tension is created while length stays the same
Down
- 1. Motion that just happens
- 2. Muscle shortens
- 4. Sustained and steady twitch
- 7. Point of attachment to bone that will move when the muscle contracts.
- 8. Help anchor muscles to bone
- 9. Jerky and quick movements
- 10. Most of heart
- 11. Muscle producing tension when extending