A 64-year-old male Is presented with dry eyes. Which ganglion is most likely to be affected?

Ciliary Ganglion

Pterygopalatine Ganglion

Otic Ganglion

Submandibular Ganglion

The pterygopalatine ganglion is most likely to be affected in a 64-year-old male presenting with dry eyes.

This ganglion is involved in the parasympathetic innervation of the lacrimal glands,

Which are responsible for tear production.

Dysfunction in this ganglion can lead to decreased lacrimal secretion and consequently dry eyes.