This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': 'Intratemporal lesion of chorda tympani nerve result in - \nSelect and explain. \nA. Loss of taste sensations from papilla of tongue, B. Loss of taste sensations from anterior 2/3rd of tongue, C. Loss of taste sensations from posterior 1/3rd of tongue, D. Loss of secretomotor fibres to the submandibular salivery gland', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Chorda tympani carries fibers of : -\n\n\nTaste for the anterior two third of the tongue.\nSecretomotor fibers to submandibular and sublingual salivary gland.\n\n\nSo, Ideally, a lesion of chorda tympani should impair both these functions but-sensations from anterior 2/3rd of the tongue are not impaired as an alternate pathway passing through the nerve of the pterygoid canal to the otic ganglion exists (which does not pass through middle ear) which is preserved in lesions of chorda tympani.\nAny lesion of chorda tympani thus leads to dryness of mouth.', 'role': 'assistant'}]