Cranial Nerves CN are nerves in the brain that are necessary for motor or sensory control in the body. CN5 has the function of the sensation of different parts of the face and some movements of the head; jaw and nasal cavity. Cranial Nerve 7, the Facial Nerve is responsible for the remainder movement of the face. CN5 is a nerve that breaks into three smaller nerves for different areas of the face, but those three nerves then branch into different areas of the head and face. CN5 is a nerve that breaks into three smaller nerves for different areas of the face and scalp, but those three nerves then branch into different areas of the head and face. CN8 splits into two nerves; the Vestibular Nerve for the function of balance and the Cochlear Nerve for hearing.
The trigeminal nerve the fifth cranial nerve , or simply CN V is a nerve responsible for sensation in the face and motor functions such as biting and chewing; it is the largest of the cranial nerves. The ophthalmic and maxillary nerves are purely sensory, whereas the mandibular nerve supplies motor as well as sensory or "cutaneous" functions. The motor division of the trigeminal nerve derives from the basal plate of the embryonic pons , and the sensory division originates in the cranial neural crest. Sensory information from the face and body is processed by parallel pathways in the central nervous system. The three major branches of the trigeminal nerve—the ophthalmic nerve V 1 , the maxillary nerve V 2 and the mandibular nerve V 3 —converge on the trigeminal ganglion also called the semilunar ganglion or gasserian ganglion , located within Meckel's cave and containing the cell bodies of incoming sensory-nerve fibers. The trigeminal ganglion is analogous to the dorsal root ganglia of the spinal cord, which contain the cell bodies of incoming sensory fibers from the rest of the body. From the trigeminal ganglion a single, large sensory root enters the brainstem at the level of the pons.
Trigeminal Neuralgia is a disorder of the 5th cranial nerve, which affects the face, eyes, nose, lips, teeth, gums, tongue, and scalp. Due to its painful symptoms and the general lack of knowledge about TN, it has become the focal point of Facial Pain Association. Our goal is to spread the word and find a cure. Note: sponsorship does not constitute an FPA endorsement of any commercial product, physician, surgeon, medical procedure, medical institution or its staff.
Trigeminal neuralgia is a chronic pain condition that affects the trigeminal nerve, which carries sensation from your face to your brain. If you have trigeminal neuralgia, even mild stimulation of your face — such as from brushing your teeth or putting on makeup — may trigger a jolt of excruciating pain. You may initially experience short, mild attacks.