part of part of in taxon results in morphogenesis of anatomical structure morphogenesis hypoglossal nerve development cranial nerve morphogenesis hypoglossal nerve morphogenesis CN XII morphogenesis The process in which the anatomical structure of the hypoglossal nerve is generated and organized. This motor nerve innervates all the intrinsic and all but one of the extrinsic muscles of the tongue. GO:0021618 Tetrapoda hypoglossal nerve