The parasympathetic secretomotor fibres to parotid traverse through all of the following, EXCEPT?
The parasympathetic secretomotor fibres to parotid arises from the glossopharyngeal nerve. The nerve reaches the gland tympanic branch, the lesser petrosal nerve, the otic ganglion and the auriculotemporal nerve. Course of the nerve:Preganglionic parasympathetic fibers originate from inferior salivary nucleus in the medulla oblongata and are carried in the glossopharyngeal nerve.These fibers leave the glossopharyngeal nerve in its tympanic branch, which enters the middle ear. Here it breaks into tympanic plexus which gives origin to lesser petrosal nerve. This nerve enters the middle cranial fossa from where it enters infratemporal fossa to terminate in otic ganglion. Postganglionic fibres join the auriculotemporal nerve which provide secretomotor fibers to parotid gland.
Otic ganglion
Tympanic plexus
Auriculo temporal nerve
Greater Petrosal nerve