attached to muscles innervated by hypoglossal nerve Eutherian genioglossus muscle http://purl.obolibrary.org/obo/UBERON_0001571 http://www.feedexp.org/wiki/Mammalian_Muscle_Ontology_Workshop Ready for review. The genioglossus muscle is attached to the mandible and the tongue, and it is innervated by the hypoglossal nerve (CN XII). intrinsic tongue muscle tongue mandible bone