Muscle Review Crossword- Dakota Godfrey

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Across
  1. 1. pacemaker cells of the heart
  2. 5. a muscle under conscious control
  3. 7. the plasma membrane of muscle cells
  4. 9. fibers are organized into bundles
  5. 10. a muscle that is not under conscious control
  6. 12. folded area of the sarcolemma where the muscle and neuron communicate
  7. 14. found in the walls of hollow organs
  8. 17. the boundary between sarcomeres
  9. 18. Composed of individual heart muscle cells
  10. 19. cells contain a lot of mitochondria
  11. 20. gap between the neuron and motor end plate
Down
  1. 2. each muscle is surrounded by a membrane
  2. 3. where thick and thin filaments overlap
  3. 4. Protects internal organs and produces heat
  4. 6. each muscle has smaller fibers called
  5. 8. what bones are attached to
  6. 11. the functional unit inside of a muscle fiber
  7. 13. enzyme that breaks down ACH
  8. 15. a single muscle cell
  9. 16. excessive stretching and possible tearing of the muscle or tendon