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Across 4. chest 8. front of thigh 12. striated and under voluntary control 13. attach muscle to bone 16. upper back arm 19. attach bone to bone 21. abs 22. a type of energy metabolism known as GLYCOLYSIS; does not require oxygen 23. muscle cell 24. stores oxygen in muscle cells 25. middle back

Down 1. produces energy for muscles 2. microscopic fibers, dense irregular connective tissue inside a muscle cell 3. lower leg 5. where muscle attaches to a more stationary bone 6. front of upper arm 7. back upper leg 9. lower back 10. calf 11. bottom 12. non-striated and under involuntary control 13. neck 14. top lower arm 15. a type of energy metabolism known as cellular respiration; requires oxygen 16. front lower leg 17. striated and under involuntary control 18. shoulder 20. stored form of glucose in muscle cells