The thoracolumbar region of the spinal cord has the outflow
     The thoracolumbar region of the spinal cord has the outflow fibers for ____________.  sympathetic  parasympathetic  both sympathetic and parasympathetic  The adrenal medulla is innervated by the __________ division.  Sympathetic  parasympathetic  both sympathetic and parasympathetic  The spinal cord area that gives rise to the preganglionic fibers is located in the ____________ of the spinal cord.  lateral gray hom  posterior white matter  anterior gray hom  lateral white matter  This division of the ANS involves the \"fight. flight or fear\" reaction. What is it called? 
  
  Solution
Pre-ganglionic and post-ganglionic neurons are involved in the transmission of signals through the sympathetic system:. The preganglionic neurons originate from the thoracolumbar region of the spinal cord.
2. Sympathetic
Adrenal medulla is innervated by sympathetic pre-ganglionic neurons.
3. Lateral grey horn
Preganglionic nerve cells in the sympathetic nervous system come from the lateral grey horn or lateral grey column

