Trigeminal(v)

The trigeminal nerve, also known as the fifth cranial nerve, is the largest of the twelve cranial nerves. It is responsible for sensation in the face, including touch, pain, and temperature. It also innervates the muscles of mastication, which are used for chewing. The trigeminal nerve has three branches: The ophthalmic nerve (V1): This branch supplies sensation to the forehead, upper eyelid, eye, and nose. The maxillary nerve (V2): This branch supplies sensation to the midface, including the cheek, upper lip, and upper teeth. The mandibular nerve (V3): This branch supplies sensation to the lower face, including the lower lip, lower teeth, and chin. It also innervates the muscles of mastication. The trigeminal nerve arises from the pons, which is a part of the brainstem. It then divides into its three branches. The ophthalmic nerve passes through the orbit, which is the bony cavity that contains the eye. The maxillary nerve passes through the pterygopalatine fossa, which is a space in the skull that contains several important structures, including the maxillary artery and the pterygopalatine ganglion. The mandibular nerve passes through the infratemporal fossa, which is a space in the skull that contains several important structures, including the mandibular artery and the mandibular nerve ganglion. The trigeminal nerve is a very important nerve. It is responsible for sensation in the face and for the movement of the muscles of mastication. Damage to the trigeminal nerve can cause numbness, tingling, and pain in the face. It can also cause difficulty chewing.

This nerve arises from the Spinial Cord.