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Atypical Distribution of Ninth Nerve

J. Clayton Davie, MD; Robert S. Bourke, MD

Arch Neurol. 1967;16(6):599-605.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

It has been generally accepted that the parasympathetic innervation (secretory and vasodilator) of the parotid gland arises from the inferior salivatory nucleus of the medulla and passes into the glossopharyngeal nerve. At, or just distal to, the jugular foramen, a branch of the nerve conveying preganglionic parasympathetic fibers leaves the ninth nerve and courses back intracranially as the nerve of Jacobson or the tympanic branch of the ninth nerve to the tympanic plexus in the tympanum. From this point these fibers pass as the lesser superficial petrosal nerve to the otic ganglion. Postganglionic fibers run from the otic ganglion by way of the auriculotemporal branch of the mandibular division of the fifth nerve to the parotid gland.^1,2

Reichert and Poth³ in 1933, found a marked reduction of secretion from the ipsilateral parotid gland after the ninth nerve was isolated and sectioned intracranially. They reported that this reduction . . . [Full Text PDF of this Article]

Author Affiliations
St. Louis

From the Division of Neurosurgery, Department of Anatomy, and the Beaumont-May Institute of Neurology, Washington University School of Medicine, St. Louis. Dr. Davie's present address is the Division of Neurosurgery, Department of Surgery, Medical College of Alabama and Veterans Administration Hospital, Birmingham, Ala.

Footnotes
Submitted for publication Jan 12, 1967; accepted Jan 21.

Reprint requests to Division of Neurosurgery, Medical College of Alabama, Birmingham, Ala 35233 (Dr. Davie).

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