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Cranial Nerve V: The Trigeminal Nerve Stemming from the lateral superior margin of the left and right side of the pons, this nerve branches into three: V/I ophthalmic, V/II maxillary and V/III mandibular nerves. These branches exit the skull through the superior orbital fissure (V/I), the foramen rotundum (V/II) and the foramen ovale (V/III). This nerve governs the sensory innervation of the face, sinuses and teeth.
GVA: carotid body, carotid sinus, pharynx, middle ear; GSA: skin of the external ear; SVA: taste from the posterior 1/3 of the tongue. also known as: CN IX, 9th cranial nerve; the glossopharyngeal n. exits the posterior cranial fossa by passing through the jugular foramen;it may penetrate the stylopharyngeus m. hypoglossal: medulla: hypoglossal nucleus: branches of C1 carried by this nerve are not considered to be branches of the hypoglossal nerve