Pop Quiz #192

The correct answer is B. V2 (maxillary nerve).

The maxillary nerve (V2) supplies sensory innervation to the temple, lateral scalp, lower eyelid, nasal ala/sidewall, upper lip and medial/malar cheeks.

The ophthalmic nerve (V1) supplies sensory innervation to the medial forehead, scalp, upper eyelids, nasal root, and upper lateral nasal sidewalls.

The mandibular nerve (V3) supplies sensory innervation to the preauricular cheeks, lateral temple/scalp, chin, lower lip, and external auditory canal.

The zygomatic branch of the facial nerve provides motor innervation, not sensory, to the procerus and orbicularis oculi.

References:

Bolognia, J., Jorizzo, J. L., & Schaffer, J. V. (2012). Dermatology. Philadelphia: Elsevier Saunders.