This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
[{'content': 'Which nerve is the secretory nerve to the nasal glands? \nSelect and explain. \nA. Anterior ethimoidal, B. Posterior ethimoidal, C. Greater petrosal, D. Lesser palatine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The greater petrosal nerve, a branch of the facial nerve arises from the geniculate ganglion. It consists of preganglionic parasympathetic fibres which relay in the pterygopalatine ganglion and supply the secretomotor fibres to the lacrimal gland and the mucous glands of nasal cavity and palate.Anterior and posterior ethmoidal nerves and lesser palatine nerves supply the lateral wall of nose and nasal septum.Reference: Textbook of anatomy, Head Neck, and Brain, Vishram Singh, 2nd edition, page no.342,258', 'role': 'assistant'}]