True, the sympathetic preganglionic fibers' cell bodies are discovered in the horn of gray matter in the spinal cord.
Sympathetic preganglionic neurons (SPNs) are located in the spinal cord, and their axons go via the ventral horn to exit in the ventral roots, where they form synapses with postganglionic neurons.
The ciliary ganglion is innervated by parasympathetic preganglionic nerve fibers from the Edinger-Westphal nucleus, which supplies the ciliary muscle (which aids in accommodation to close vision) and the pupillary constrictor muscle (constricting the pupil).
Sympathetic preganglionic neurons (SPNs) are located in the spinal cord, and their axons go via the ventral horn to exit in the ventral roots, where they form synapses with postganglionic neurons
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