Across
- 7. Acetylcholine
- 10. where the nerve meets the muscle fibre
- 13. A sheath of connective tissue that groups muscle fibres into bundles
- 14. Membrane dividing each sarcomere
- 15. A zone with only myosin
Down
- 1. Tiny projections on myosin filaments that attach on the actin filaments
- 2. A layer of connective tissue which covers the entire muscle
- 3. Long length muscle cells that make up skeletal muscle
- 4. Tubes that run the length of muscle fibres
- 5. Thick protein filament
- 6. The action of actin and myosin moving along each other
- 7. filament Thin protein filament connected to z-line
- 8. Basic contractile unit of skeletal muscle where tension is created
- 9. Where the motor neuron meets the muscle fibre
- 11. Causes a reaction between actin and myosin
- 12. A bundle of muscle fibres