Damage to facial nerve just above branching of chorda tympani causes all except:: (A) Hyperacusis, (B) Decreased salivation, (C) Loss of taste from tongue, (D) Paralysis of muscles of facial expression
Answer is A. Lesions within the facial canal distal to the meatal segment cause both hyperacusis and ageusio; lesions in the facial canal between the nerve to stapedius and the chorda tympani cause ageusia but no hyperacusis; lesions distal to the chorda tympani cause neither ageusia and hyperacusis.