Sympathetic Nervous System Research Paper

The sympathetic nervous system exist from the spinal cord at the thoracic and lumbar regions and sends preganglionic fibers to a sequence of organized ganglia known as the paravertebral chain ganglia. A preganglionic sympathetic fiber may synapse instantly with a postganglionic fiber, which in turn travels to its target organ, or the preganglionic fiber may travel up or down the chain ganglia before synapsing with postganglionic fibers. In fact, most sympathetic preganglionic fibers do both these things: They synapse with postganglionic fiber at one level and send a collateral section to another level in the chain, synapsing with several other postganglionic fibers along the way. In addition, some sympathetic preganglionics may travel directly