Which nerve is the chief sensory nerve of the face?

Which nerve is the chief sensory nerve of the face?

• A. Trifacial nerve
• B. Motor nerve
• C. Facial nerve
• D. Optical nerve

Answer: (A)

The nerve that provides most of the face’s sensation is the trigeminal nerve, sometimes called the trifacial nerve because it has three divisions: ophthalmic, maxillary, and mandibular. It carries sensory information such as touch, pain, and temperature from the skin of the face, as well as the mucous membranes of the mouth and nose, and even the cornea. This is what makes it the chief sensory nerve of the face. The facial nerve is mainly involved in moving the facial muscles (with some taste fibers), the optic nerve handles vision, and a motor nerve description is too vague to represent the primary sensory role. So the trifacial (trigeminal) nerve is the best answer.

The nerve that provides most of the face’s sensation is the trigeminal nerve, sometimes called the trifacial nerve because it has three divisions: ophthalmic, maxillary, and mandibular. It carries sensory information such as touch, pain, and temperature from the skin of the face, as well as the mucous membranes of the mouth and nose, and even the cornea. This is what makes it the chief sensory nerve of the face. The facial nerve is mainly involved in moving the facial muscles (with some taste fibers), the optic nerve handles vision, and a motor nerve description is too vague to represent the primary sensory role. So the trifacial (trigeminal) nerve is the best answer.