Across
- 3. glucose is broken down to lactic acid when oxygen is not present
- 6. glucose is broken down using oxygen to make ATP
- 9. glucose is broken down into pyruvic acid
- 10. rodlike contractile element
- 12. extension of sarcolemma that conducts nerve impulses in muscle cells
- 14. space between axon terminal and the muscle fiber
- 15. connective tissue sheath around each muscle fiber
- 16. muscle cell
- 17. actin and myosin
- 19. connective tissue surrounding whole muscle
Down
- 1. smooth ER that regulates levels of Calcium ions in muscle cells
- 2. muscle attachmentment at movable bone
- 4. bundle of muscle cells
- 5. basic contractile unit (composed of myofilaments)
- 7. striated and voluntary
- 8. electrical current through a membrane
- 11. a neurotrasmitter
- 13. oxygen-binding protein in muscle cells
- 14. nonstriated and involuntary
- 18. cell membrane of a muscle cell