3. Physiology
        3.11. Neurophysiology
            3.11.8. Autonomic nervous system
3.11.8.1. Anatomy

General structure

Central portion is located in:

 

Preganglionic neurons have
   -> cell bodies in brain stem or spinal cord

   -> axons are thinly myelinated

Postganglionic neurons have

   -> cell bodies in the autonomic ganglia

   -> axons are unmyelinated

 

Sympathetic ganglia are located close to CNS

   -> short preganglionic fibres, long postganglionic fibres

Parasympathetic ganglia are located close to the effector tissues

   -> long preganglionic fibres, short postganglionic fibres

 

Anatomy

Sympathetic motor neurons

 

Parasympathetic motor neurons

  

Parasympathetic fibres in CN III innervate

 

Parasympathetic fibres in CN VII innervate

 

Parasympathetic fibres in CN IX innervate

 

Parasympathetic fibres in CN X (vagus nerve) innervate

 

Sacral parasympathic fibres innervate

 

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