nasotracheal tube: a tube inserted into the trachea through the nose and pharynx; used to deliver oxygen
endotracheal tube: a catheter that is inserted into the trachea through the mouth or nose in order to maintain an open air passage or to deliver oxygen or to permit the suctioning of mucus or to prevent aspiration of the stomach contents
mayapple: North American herb with poisonous root stock and edible though insipid fruit