Josie's anatomy crossoword

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Across
  1. 4. progressive neurodegenerative disease
  2. 6. communication between muscle and neuron
  3. 7. single muscle cell
  4. 8. a muscles not under conscious control
  5. 9. Where thick and thin filaments overlap
  6. 10. acetylcholine receptors are damaged
  7. 13. neurotransmitter that crosses the synaptic gap
  8. 14. boundary between sarcomeres
  9. 15. gap between the neuron and motor
  10. 17. bundles
  11. 18. neurotransmitter are stored
Down
  1. 1. lowers the threshold level
  2. 2. a muscle under conscious control
  3. 3. enzyme that breaks down
  4. 5. Functional unit inside of a muscle fiber
  5. 7. thick filament
  6. 9. thin filament
  7. 11. Produced by cellular respiration
  8. 12. plasma membrane
  9. 16. tearing of the muscle