Facial MusclesFacial ParalysisFacial NerveMusclesSmilingFacial ExpressionZygomaNerve TransferFacial AsymmetryMasticatory MusclesMuscle ProteinsMuscle, SmoothMuscle, SkeletalSkull Base NeoplasmsMuscle Fibers, SkeletalMuscle, Smooth, VascularElectromyographyMuscle DevelopmentMuscle ContractionParotid NeoplasmsMuscle FatigueMuscle Fibers, Fast-TwitchMuscle DenervationMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleMitochondria, MuscleFacial Nerve DiseasesFacial BonesOculomotor MusclesNeck MusclesMuscle, StriatedFacial Injuries