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Category - Sciences

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Sensory (afferent) neurons perform what main function in the nervous system?
  1. Transmit nerve impulses from one neuron to another
  2. Transmit nerve impulses from effector sites to the spinal cord and brain
  3. Transmit nerve impulses from the neurolemma to the myelin sheath
  4. Transmit nerve impulses from the brain and spinal cord to the effector sites
Explanation
Answer - B - Sensory neurons transmit nerve impulses from effector sites, such as muscles and organs, via receptors to the spinal cord and brain. An example of this is when touching a hot object. The signal of the sensation of heat is transmitted from sensory neurons to the brain.
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