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: Anatomy
Parasympathetic nerve supply to parotid salivary gland is by? 
Select and explain. 
A. Otic ganglion, B. Lingual nerve, C. Inferior alveolar nerve, D. Deep temporal nerve
A: Otic ganglion
Answer: A: Otic ganglion 
Explanation: The parotid gland receives parasympathetic secretomotor innervation from preganglionic fibers that arise in the inferior salivatory nucleus. They travel in the lesser petrosal branch of the glossopharyngeal nerve. The lesser petrosal nerve exits the middle cranial fossa through the foramen ovale, where the preganglionic fibers synapse in the otic ganglion. Must know: The postganglionic fibers secretomotor fibres travel with the auriculotemporal nerve to supply the parotid gland.