Colorado Cosmetology Written Practice Exam

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Where do moto nerves transmit impulses from?

  1. From the brain to the muscles

  2. From the muscles to the brain

  3. Within the brain

  4. From the skin to the brain

The correct answer is: From the brain to the muscles

Motor nerves transmit impulses from the brain to the muscles. This is the main function of motor nerves, as they are responsible for controlling movement and muscle contraction. Option B is incorrect as sensory nerves, not motor nerves, transmit impulses from the muscles to the brain. Option C is incorrect as the brain itself is not a source or target of impulse transmission. Option D is incorrect as that is the function of sensory nerves, which transmit impulses from the skin to the brain.

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