Because preganglionic neurons are found in nuclei of the brain stem and the lateral horn of the sacral spinal cord, the parasympathetic system is sometimes known as the craniosacral system (or outflow).
The parasympathetic neural system (PANS or PSNS) is one of three autonomic nervous system divisions, the others being the sympathetic nervous system and the enteric nervous system. The enteric nervous system is sometimes considered a component of the autonomic nervous system and other times as a separate entity.
Because preganglionic neurons are found in nuclei of the brain stem and the lateral horn of the sacral spinal cord, the parasympathetic system is sometimes known as the craniosacral system (or outflow).
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