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Topography and macroscopic structure of parasympathetic ganglia connected with the trigeminal nerve in midday gerbil meriones meridianus mammalia rodentia

Kuder, T.

Acta Biologica Cracoviensia Series Zoologia 27: 61-70

1985


ISSN/ISBN: 0001-530X
Accession: 006814013

Using preparation technique and adequately modified Koelle-Friedenwald's method, parasympathetic ganglia connected with the trigeminal nerve in midday gerbil were detected. The otic ganglion was found to be a single, compact agglomeration of neurocytes, topographically closer connected with the maxillary artery than with the manidibular nerve. The pterygopalatine ganglion is also developed in a form of a single agglomeration of cells situated on the medial surface of the maxillary nerve. The parasympathetic ganglia functionally connected with the tympanic chorda, in most mammals forming two complexes (mandibular ganglion and sublingual ganglion), in this species, however, are dispersed in a large cholinergic plexus surrounding the mandibular and major sublingual salivary ducts. They occur, moreover, along the ductal system, on the area of the salivary glands, and accompany the branches of the lingual nerve and the lingual artery within the tongue. Although said ganglia are for various reasons generally similar to analogical structures in other rodents, they have also features occurring in this species only.

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