Histological Study of the Salivary Glands in Zaedyus pichiy (Mammalia, Xenarthra, Dasypodidae)

Estecondo, Silvia; Codón, Stella Maris; Casanave, Emma Beatriz

doi:10.4067/s0717-95022005000100004

Cited by 16 publications

(25 citation statements)

References 16 publications

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“…Não foi encontrada esta denominação em outros trabalhos, entretanto, a similaridade da localização em nossos achados torna possível esta denominação. A localização também é semelhante às descritas para Zaedyus pichiy (Estecondo et al 2005), assim como sua constituição de três lobos (Codón et al 2003, Estecondo et al 2005, Schimming 2009), em Nasua nasua (Santos et al 2010), Procyon cancrivorus (Santos et. al.…”

Section: Discussionunclassified

“…A localização do ducto parotídeo pode variar entre as espécies e entre indivíduos de mesma espécie, como observado nos coelhos por Greco (2008), em que foram relatadas três diferentes localizações: dorsal, ventral e entre os ramos bucais dos nervos faciais. Na glândula parótida foram observados ácinos do tipo serosos em Procyon cancrivorus e Nasua nasua (Santos et al 2012) e em Zaedyus pichiy (Estecondo et al 2005). Segundo Junqueira & Carneiro (2004) ácinos serosos são característicos do homem, tendo sido descrito ácinos serosos para Cricetus cricetus (Khojasteh & Delashoub 2012).…”

Section: Discussionunclassified

“…Ocasionalmente, estas apresentam formato de meia-lua e revestem externamente as células mucosas. Estas características também foram observadas em Zaedyus pichiy (Estecondo 2005) Segundo Kierszenbaum & Tres (2012) tanto os ductos intercalares como os ductos estriados são poucos desenvolvidos e a glândula não é envolvida por uma cápsula bem definida, características também observadas em nosso espécime.…”

Section: Discussionunclassified

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Morfologia das glândulas salivares de Glironia venusta Thomas, 1912 (Didelphimorphia)

et al. 2015

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RESUMO.-O objetivo deste trabalho foi descrever a morfologia das glândulas salivares de Glironia venusta. Foi utilizado um exemplar coletado no resgate de fauna da Usina Hidroeletrica Teles Pires. Este foi fixado com solução de formaldeído a 10%. Para a análise macroscópica, as glândulas foram dissecadas e fotografadas in situ e para a microscopia foram retirados fragmentos das glândulas. Estes foram desidratados em concentrações crescentes de álcool, diafanizados em xilol, inclusos em parafina e corados com HE. G. venusta apresentou as glândulas mandibulares, parótidas, sublinguais, labiais e zigomáticas. As mandibulares se mostraram como estruturas alongadas, constituídas por lobos não septados e localizadas na porção anterior da região cervical. De formato triangular, a parótida estava localizada na depressão do masseter, ventral à cartilagem auricular. As sublinguais encontravam-se ventrais ao ramo da mandíbula, caudais ao digástrico. Foi observado na porção dor- Morfologia das glândulas salivares de Glironia venustaThomas The aim of this study was to describe the morphology of the salivary glands of Glironia venusta. A sample of G. venusta was collected in fauna rescue of hidroelectric usine of Teles Pires was used. This exemplar was fixed with formaldehyde solution 10%. For macroscopic analysis, the glands were dissected and photographed in situ and for the microscopy fragments of the glands were removed, that were dehydrated in increasing alcohol concentrations, diaphanizated in xylene, included in paraffin and stained with hematoxylin and eosin. G. venusta presented the mandibular, parotid, sublingual, labial and zygomatic glands. The mandible is shown as elongated structures, composed of non-septated lobes and located in the anterior cervical region. With a triangular format, the parotid was located in the depression of the masseter, ventral an auricular cartilage. The sublingual were located ventral to the mandible, caudal to the digastric muscle. In the posterior dorsal portion, until the labial commissure, dorsal to the orbicularis muscle of mouth was observed the labial glands, which showed a "U" shape. The zygomatic glands was accompanied the shape of the anterior portion of the zygomatic arch at the infraorbital margin. The mandibulars and sublinguals glands showed acini of mucous type, with some serous acini. The parotid one was made up purely by serous acini. In the labial gland was observed acini of mixed types mixed or seromucosous. Related the zygomatic gland was not possible to perform the microscopic analysis because of histological proceeding problems. Characteristics of the salivary glands observed in G. venusta resemble other omnivores mammals, but showed small differences as regards their location and shape.

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Section: Discussionunclassified

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Morfologia das glândulas salivares de Glironia venusta Thomas, 1912 (Didelphimorphia)

et al. 2015

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“…The structure and function of adult salivary glands as well as the effect of the ageing process in mammalian, laboratory and domestic animals have been thoroughly studied (Ghezzi and Ship, and Estecondo et al., ; Elewa et al., ,b). However, only few reports have been published so far about their structure in young‐aged animals, especially in the goat.…”

Section: Introductionmentioning

confidence: 99%

Structural Changes of Goat Parotid Salivary Gland: Pre- and Post-Weaning Periods

Elewa

Ichii

Otsuka

et al. 2013

Anat. Histol. Embryol.

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Previously, the structure of the adult goat parotid salivary glands (PGs) was studied. However, little information was elucidated of the juvenile ones. This study aimed to clarify the correlations between the structure of goats' PGs and the nature of food intake among milk-suckling kids (MSKs) and diet-fed goats (DFGs). The secretory endpieces of the goats' PGs are of the pure serous type. The serous cells in MSKs showed apical accumulation of numerous secretory granules (SGs) of smaller size and of more intense positive periodic acid-Schiff reaction. Ultrastructurally, most of the SGs in the DFGs contained peripherally located inclusions that showed dense reaction products for acid phosphatase. In MSKs, the PGs showed less-developed basal infoldings, sparseness of the inter-cellular inter-digitations, fewer inter-cellular canaliculi and microvilli and also less-developed myoepithelial cells with fewer and shorter cytoplasmic processes. In conclusion, the less-developed membrane specializations and myoepithelial cells, as well as the accumulated SGs in the PGs of MSKs, suggest that it secretes less saliva with a little secretory activity than that of DFGs, which may be correlated with the reduced masticatory activity.

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“…The armadillo diet consists of insects, worms, small vertebrates, some vegetable materials and carrion (Estecondo et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Morphological Study of the Cervical Salivary Glands in the Nine-Banded Armadillo

Schimming

2009

Int. J. Morphol.

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The cervical salivary glands of the armadillo Dasypus novemcinctus was examined by light microscopy. These glands are situated on either side of the neck, divide in lobes and show a presence of a salivary bladder, associated with the main ducts of the gland. This gland is histologically a typical mixed glands, containing both mucous and serous elements, with mucous acini as the predominant secretory unit. The bladder itself is composed of a wall made up of pseudostratified epithelium, skeletal muscle and connective tissue. In general, the morphology of the cervical salivary glands appears similar to that described in other species of the mammals.

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Histological Study of the Salivary Glands in Zaedyus pichiy (Mammalia, Xenarthra, Dasypodidae)

Cited by 16 publications

References 16 publications

Morfologia das glândulas salivares de Glironia venusta Thomas, 1912 (Didelphimorphia)

Morfologia das glândulas salivares de Glironia venusta Thomas, 1912 (Didelphimorphia)

Structural Changes of Goat Parotid Salivary Gland: Pre- and Post-Weaning Periods

Morphological Study of the Cervical Salivary Glands in the Nine-Banded Armadillo

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