Which ganglion houses postganglionic parasympathetic neurons for the lacrimal gland after CN VII synapses?

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Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which ganglion houses postganglionic parasympathetic neurons for the lacrimal gland after CN VII synapses?

Explanation:
The postganglionic parasympathetic neurons that supply the lacrimal gland reside in the pterygopalatine ganglion. After CN VII carries preganglionic fibers, they synapse in this ganglion. From there, the postganglionic fibers hitchhike with branches of the maxillary nerve (the zygomatic nerve) and then join the lacrimal nerve to reach the lacrimal gland, triggering tear production. Other ganglia serve different targets: the otic ganglion for the parotid gland, the ciliary ganglion for the sphincter pupillae and ciliary muscle, and the submandibular ganglion for the submandibular and sublingual glands.

The postganglionic parasympathetic neurons that supply the lacrimal gland reside in the pterygopalatine ganglion. After CN VII carries preganglionic fibers, they synapse in this ganglion. From there, the postganglionic fibers hitchhike with branches of the maxillary nerve (the zygomatic nerve) and then join the lacrimal nerve to reach the lacrimal gland, triggering tear production. Other ganglia serve different targets: the otic ganglion for the parotid gland, the ciliary ganglion for the sphincter pupillae and ciliary muscle, and the submandibular ganglion for the submandibular and sublingual glands.

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