Observations Concerning the Structure of the Major Salivary Glands in Chinchilla (Chinchilla lanigera)

Bianca Matosz, Aurel Damian, Vasile Rus, Cristian Martonos, Adrian Florin Gal, Flavia Ruxanda, Viorel Miclaus

Abstract


The structure of the salivary glands is different depending on the species and diet. The glandular secretion can be serous, mucous or mixed. Within the same order, for instance in rodents, there are dissimilarities between the major salivary glands, even if the diet is similar.

In this study, we used three chinchillas, slaughtered for their fur. We harvested the major salivary glands which were histologicaly processed.

The parotid gland in chinchilla is highly similar to the one in other mammal species, regarding its general microscopic aspect. It contains only one type of acini (serous) and numerous secretory ducts. On the other hand, the submaxillary gland has a particular type of acini, with a narrow lumen and cells with a round nucleus. They resemble the serous ones, but the glanular aspect of the cytoplasm suggests that the secretion of this gland is different in comparison to the one in the parotid gland. The structure of the sublingual gland in chinchilla is similar to the one in most of the mammals, containing typical mucous acini, with a foamy cytoplasm.

The major salivary glands in chinchilla, highly resemble those in most of the mammal species. The parotid gland presents serous acini and the sublingual one, typical mixed acini. Instead, the submaxillary gland has a particular aspect: its acini do not present the serous demilune, they resemble the typical serous acini (contain round nuclei), but they are larger.

Keywords


Chinchilla, mandibular gland, parotid gland, sublingual gland

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DOI: http://dx.doi.org/10.15835/buasvmcn-vm:11814




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