<prompt> Marginal mandibular branch of facial nerve lies in:Subdermal fat planeSubplatysmal plane deep to facial veinPlatysma planeSubplatysmal plane superficial to facial vein  <response>: Branches and Distribution of facial nerve:Within the facial canalGreater petrosal nerveThe nerve to the stapediusThe chorda tympaniAt its exit from the stylomastoid foramenPosterior auricularDigastricStylohyoidTerminal branches within the parotid glandTemporalZygomaticBuccalMarginal mandibularCervicalKey Concept: The marginal mandibular branch of the facial nerve is found superficial to the facial artery and anterior facial vein. Thus, the facial artery can be used as an important landmark in locating the marginal mandibular nerve during surgical procedures. 