Hypoglossal Nerve

Hypoglossal nerve is the twelfth cranial nerve. Needs of the tongue muscles. It comes from the core of their motor neurons form in the spinal anterolateral sulcus between the olive and the pyramid. When the axons of these neurons join to form the common troco nerve emerges from the skull through the hypoglossal canal. Then XII cranial arc and is divided into terminal branches, which innervate various muscles tongue.