#motor unit

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[er-cryptid]

Motor Unit

-- important for contraction of skeletal muscle

-- consists of a motor neuron and all the muscle fibers it supplies

-- two categories      -- fine control      -- less precise control

Fine Control -- includes      -- fingers      -- toes -- less than 150 muscle fibers per neuron

Less Precise Control -- includes      -- hips      -- legs -- more than 150 muscle fibers per motor neuron

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