12TH CRANIAL NERVE

The Hypoglossal nerve is the twelth cranial nerve, and innervates all the extrinsic and intrinsic muscles of the tongue, except for the palatoglossus which is innervated by the vagus nerve. ANATOMY: The hypoglossal nerve arises from the hypoglossal nucleus. This is found the full length of the medulla, close to the midline. The roots of…