Sympathetic postganglionic fibers travel after synapsing in which ganglion?

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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

Sympathetic postganglionic fibers travel after synapsing in which ganglion?

Explanation:
The fibers in question are part of the sympathetic system, and their postganglionic cell bodies reside in the superior cervical ganglion. After a preganglionic neuron synapses there, the postganglionic fibers ride along the internal carotid artery (the carotid plexus) to reach ocular targets such as the dilator pupillae and Müller’s muscle, producing pupil dilation and eyelid retraction. The other gangs listed are parasympathetic relay stations where parasympathetic preganglionic fibers synapse, so sympathetic postganglionic fibers do not terminate there; they simply pass through or bypass these ganglia on their way to their destinations.

The fibers in question are part of the sympathetic system, and their postganglionic cell bodies reside in the superior cervical ganglion. After a preganglionic neuron synapses there, the postganglionic fibers ride along the internal carotid artery (the carotid plexus) to reach ocular targets such as the dilator pupillae and Müller’s muscle, producing pupil dilation and eyelid retraction. The other gangs listed are parasympathetic relay stations where parasympathetic preganglionic fibers synapse, so sympathetic postganglionic fibers do not terminate there; they simply pass through or bypass these ganglia on their way to their destinations.

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