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