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Sacral Outflow - SacralOutflow . organs SympatheticDivision...

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Sacral Outflow  Arises from neurons located in S2-S4. Innervates the rest of the large intestine and the pelvic  organs.  Sympathetic Division  Originates from the thoracolumbar region of spinal cord. More complex, innervates more organs.  All preganglionic fibers of the sympathetic division arise from cell bodies of preganglionic  neurons located in spinal cord segments T1-L2. After leaving the spinal cord, the preganglionic  neurons enter the sympathetic chain, which is a sequence of connected ganglia located adjacent  to the vertebral column. Although the sympathetic chain extends from the neck to the pelvis, the  sympathetic fibers arise only from the thoracic and lumbar cord segments. There are 23 ganglia  in each sympathetic chain.  All sympathetic ganglia are close to the cord, and the postganglionic fibers which run from the  ganglion to the organs they supply, are much longer than the preganglionic fibers. 
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