dorsal lingual veins dorsal lingual veins the dorsal lingual veins are veins which drain the dorsum and sides of the tongue. dorsal lingual veinsveins of the tongue. the hypoglossal nerve has been displaced downward in this preparation.detailsdrains tolingual veinarterydorsal lingual branches of lingual arteryidentifierslatinvenae dorsales linguaeta98a12.3.05.010ta24808fma70842anatomical terminology