A patient has a tumor of the eyesocket tissues behind the eyeball. Disruption of accomodation and pupil constriction is observed. What anatomical structure is damaged?

Question

Answer options

N. trochlearis
Ganglion ciliare
N. opticus
N. nasociliaris
N. lacrimalis

Correct answer

Ganglion ciliare

Explanation

Ciliary Ganglion receives parasympathetic fibers from the Edinger Westphal nucleus of the Oculomotor nerve which in turn supplies Sphincter pupillae and Ciliaris muscles. Thus; disruption of accommodation and pupil constriction.

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