The Maxillary Nerve is one of the three main branches of the trigeminal nerve, which is responsible for sensation in the face. It primarily provides sensory innervation to the upper jaw, including the teeth, gums, and skin of the mid-facial region. This nerve also supplies sensation to the nasal cavity and the palate. Additionally, the Maxillary Nerve plays a role in the autonomic nervous system by carrying parasympathetic fibers to the pterygopalatine ganglion. From there, it helps regulate functions such as tear production and nasal secretions, contributing to the overall sensory experience of the face.