Across
- 3. provide protection for internal organs
- 5. Shaft; middle of bone
- 10. provide the main source of energy for people through food
- 13. cavity Hollowchamber that contains bone marrow
- 14. Attachment to the more stationary bone
- 15. Attaches muscles to bones
- 17. Longest bone in the arm
- 19. Collarbone
- 20. opposing muscles relax during motion
Down
- 1. Characteristic of muscle tissue; bounce back to original shape
- 2. Bundles of fiber within the muscle
- 4. People with what type of disease receive bone marrow transplants
- 6. When muscles decrease in size due to use
- 7. Joint in the hip and shoulder
- 8. Inner skeleton composed of 80 bones
- 9. Outer covering connected to ligaments and tendons
- 11. __ bone marrow where blood cells are produced
- 12. Type of muscle- involuntary, found in organs
- 16. Process bones go through
- 18. Movement at ankle joint- pointing toes downward; type of flexion