Muscle Anatomy

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Across
  1. 1. each muscle cell/fiber is surrounded by a membrane called
  2. 3. muscles become smaller and weak due to disuse
  3. 5. Gap between the neuron and motor end plate
  4. 6. The functional unit inside of a muscle fiber is called
  5. 8. the muscle fiber & the motor neuron
  6. 9. Fascicles are surrounded by a membrane called
  7. 14. is the boundary between sarcomeres where they connect
  8. 15. The Sarcomere is part of the fiber that contains
  9. 17. Enlargement of a muscle
  10. 18. The plasma membrane of muscle cells has a special name
  11. 19. the muscle loses ability to contract after prolonged exercise or strain
Down
  1. 2. sustained involuntary contraction
  2. 3. When thick and thin fliaments overlap
  3. 4. A single muscle cell is called a muscle
  4. 7. Each muscle cell/fiber has smaller fibers within it called
  5. 10. Folded area of sarcolemma where the muscle and neuron communicate
  6. 11. Enzyme that breaks down ACH
  7. 12. Each muscle is surrounded by a membrane called the
  8. 13. Inside skeletal muscle, fibers are organized into bundles called
  9. 16. Sustained contraction of individual fibers, even when the muscle is at rest