Muscle Crossword Puzzle Review (completed by Sebastien Clervil)

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Across
  1. 5. contraction is immediately followed by another very rapidly
  2. 8. where thick and thin filaments overlap, causing appearanceearence
  3. 9. the enlargement of an organ or tissue from the increase in size of its cells.
  4. 10. attachment to the immovable bone
  5. 12. voluntary, striated, multinucleate, attached by tendons to bones
  6. 13. waste away, especially as a result of the degeneration of cells, or become vestigial during evolution.
  7. 14. a neurotransmitter that stimulates skeletal muscle
  8. 15. the connective tissue that holds all of the fascicles together; covers the entire muscle
  9. 16. minimal amount of stimulus required to initiate muscle contraction
  10. 17. involuntary, non-striated, uninucleate, found mainly in the walls of howwow organs
  11. 18. around a single muscle fiber & between the fibers
  12. 19. functional unit inside a muscle fiber containing actin and myosin
Down
  1. 1. membrane of the muscle cells
  2. 2. attachment to the movable bones
  3. 3. single, brief, jerky contraction
  4. 4. boundaries sarcomeres and where they connect
  5. 6. bundle of muscle fibers
  6. 7. involuntary, striated, uninucleate, found only in the heart
  7. 11. around a fascicle (bundle) of fibers
  8. 12. surrounds each myofibril and stores calcium