Across
- 4. The ability of a muscle to shorten
- 5. Type of muscle found in the walls of internal organs like the stomach
- 6. The twenty-four bones that protect the spinal cord
- 7. Jelly-like substance that fills the cell.
- 9. The basic unit of all known living organisms
- 12. Network of protein filaments that helps the cell maintain its shape
- 13. Energy source for muscle contraction.
- 14. Modifies, sorts, and packages proteins and lipids.
- 15. The longest bone in the human body.
- 17. Responsible for protein synthesis.
- 20. The "powerhouse" of the cell
- 21. Genetic material found in the nucleus
- 22. Sac-like structures that store water, nutrients, and waste
- 23. Control center of the cell, contains genetic material
- 24. The functional unit of muscle contraction
Down
- 1. Sheet of connective tissue that covers and separates muscles
- 2. Bone-forming cells
- 3. Connects bone to bone.
- 7. Mineral that makes bones strong.
- 8. The body's framework
- 9. Protects the brain
- 10. Breaks down waste materials and cellular debris
- 11. Type of joint found in the knee and elbow.
- 15. Long, whip-like tail used for propulsion
- 16. Tiny,membrane-bound structures within the cytoplasm
- 18. Connects muscle to bone
- 19. The collarbone