Parasympathetic Preganglionic Fibers of the Vagus Nerve (N X)innervate Which

Question

Parasympathetic preganglionic fibers of the vagus nerve (N X)innervate which of the following?
A) submandibular glands
B) eyes
C) lacrimal glands
D) parotid glands
E) lungs

Accepted Answer

Parasympathetic preganglionic fibers of the vagus nerve innervate the lungs, controlling bronchoconstriction and increasing secretion from the bronchial glands. The submandibular and parotid glands are innervated by the facial nerve (N VII) and lacrimal glands are innervated by the glossopharyngeal nerve (N IX). The eyes are innervated by the oculomotor nerve (N III), trochlear nerve (N IV), and abducens nerve (N VI).