New Jersey State Board Esthetics Practice Exam

Which nerve is recognized as the chief sensory nerve of the face?

1. Facial Nerve

2. Trigeminal Nerve

3. Accessory Nerve

4. Vagus Nerve

The correct answer is: Trigeminal Nerve

The trigeminal nerve is recognized as the chief sensory nerve of the face because it is responsible for transmitting sensory information from the face to the brain. It has three major branches: the ophthalmic, maxillary, and mandibular nerves, each providing sensation to different areas of the face, including the forehead, cheeks, and jawline. This extensive network makes it essential for facial sensation. The other nerves listed have different primary functions; for instance, the facial nerve primarily controls muscles of facial expression and carries taste sensations, while the accessory nerve is mainly involved in motor functions and the vagus nerve regulates autonomic functions throughout the body. Thus, the trigeminal nerve specifically serves the role of sensory input for facial awareness and response.