<prompt> Which test can detect facial nerve palsy occurring due to lesion at the outlet of stylomastoid?Detion of angle of mouth towards opposite sideLoss of taste sensation in anterior 23 of tongueLoss of sensation over right cheekDetion of tongue towards opposite side  <response>: Lesion occuring at the outlet of stylomastoid foramen means LMN palsy, so face sags and is drawn across to opposite side. Chorda tympani nerve is spared at this level hence taste sensation over anterior 23 of tongue preserved 