The parotid salivary glands are innervated by branches of ........... nerve.

Vagus

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Spinal accessory

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Facial

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Glossopharyngeal

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Solution

The correct option is D Glossopharyngeal
The tympanic branch of the glossopharyngeal nerve (IX) provides parasympathetic innervation of the parotid gland to ganglion via a petrosal nerve.
It is a mixed nerve that carries afferent sensory and efferent motor information.
So, the correct answer is option D.

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