Discomfort from an infection of BOTH the frontal and ethmoidal sinuses would be associated with involvement of which of the following nerves?
A)Facial nerve
B)Frontal nerve
C)Nasociliary nerve
D)Optic nerve

Question

Quizplus · Accepted Answer

The nasociliary nerve provides sensory innervation to the ethmoidal sinuses and the anterior ethmoidal cells, which drain into both the frontal and ethmoidal sinuses. Therefore, discomfort from an infection of both sinuses would involve the nasociliary nerve. The facial nerve (A) innervates the muscles of facial expression, the frontal nerve (B) provides sensory innervation to the forehead, and the optic nerve (D) is responsible for vision and does not innervate the sinuses.

Discomfort from an Infection of BOTH the Frontal and Ethmoidal