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Muscle movement 1 pt Spinal cord Dorsal The image to the right depicts a motor neuron along with all of the muscle fibers it

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Option B) Motor unit

  • A motor neuron with all the skeletal muscle fibers it innervates is known as a motor unit.
  • It helps in stimulating many muscle fibers at a time to facilitate contraction.
  • It order to increase the force of contraction, more motor units are recruited.


- A neuromusclular junction is innervation of an axon terminal to one single muscle fiber.

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