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Question

In contrast to the somatic nervous system, the autonomic nervous system :


  1. Has centers in the brain and spinal cord

  2. Has both afferent and efferent fibers

  3. Stimulates its effector cells    

  4. Has two-neuron efferent pathway


Solution

The correct option is D

Has two-neuron efferent pathway


The autonomic nervous system has a unique sequential two-neuron efferent pathway;

1. The preganglionic neuron arising at the spinal cord or at the cranial nerves synapses on a postganglionic neuron arising at a ganglion near the target organ.

2. The postganglionic neuron will then synapse at the target organ.

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