Across
- 2. - Forms the wall of the internal muscles
- 8. - Joint between bone that permits motion in only one plane
- 11. - Knee caps
- 12. - Front of the thigh, Medial
- 13. - Outer bone in the forearm
- 14. - The spinal cord
- 15. - Shoulder muscle
- 17. - Ability to be stretched
- 19. - Moves the ribs for breathing
- 20. - Contract automatically
Down
- 1. - Forms the wall of the heart and contracts to circulate blood
- 3. - The inner bones in the toes
- 4. - Sudden, involuntary contractions or spasms in one or more of your muscles
- 5. - Allows muscles to return to it's original shape
- 6. - when simulated by nerves, able to contract
- 7. - Finger tip bones
- 9. - Connect muscles to bone
- 10. - Collar bone
- 16. - Muscles you contract when you want to move
- 18. - The big bone in the lower leg