maxillary nerve

The maxillary nerve is a major cranial nerve originating from the trigeminal nerve. It carries sensory information from the face, including the upper teeth, nasal cavity, and palate. The maxillary nerve passes through the foramen rotundum and branches out to serve various areas, such as the dura mater, upper teeth and gums, parts of the nasal cavity, and the soft palate. It also innervates the upper lip, lower eyelid, and skin on the cheek and side of the head. Trigeminal neuralgia, a condition causing intense facial pain, can stem from irritation of the sensory fibers within the maxillary nerve. The term "supramaxillary nerve" can also refer to the maxillary division of the trigeminal nerve.12