COMEDK 2007 MCQ Answer 168

The correct answer is C

In general, the nose is innervated by the olfactory nerve, branches of the ophthalmic and maxillary divisions of the trigeminal nerve, parasympathetic secretomotor fibers, and sympathetic fibers. The autonomic nerve supply to the nose regulates vascular tone, turbinate congestion, and nasal secretion. Parasympathetic fibers synapse in the sphenopalatine ganglion before innervating nasal mucosa. These fibers travel with the facial nerve, exiting at the geniculate ganglion as the greater superficial petrosal nerve. The vidian nerve is formed by the union of the greater superficial petrosal and deep petrosal nerves and carries the fibers to the sphenopalatine ganglion, where they synapse.