Morphological Description of the Green Turtle Tongue (Chelonia Mydas)

Melo, Luana Felix de; Cabrera, Marisol León; Rodrigues, Ana Clara Bastos; Turquetti, Anaelise de Oliveira Macedo; Lopes, Eymar Sampaio; Rici, Rose Elí Grassi

doi:10.22161/ijaers.6.5.39

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The tissue fragments were dehydrated in an increasing series of alcohols in concentrations from 70 to 100%, dried in a LEICA EM CPD 300 critical point apparatus, glued with carbon glue on metallic aluminum bases (stub) and metallized ("sputting") with gold in the EMITECH K550 metallizer, and analyzed and documented in an SEM LEO 435VP (Melo et al, 2019) at the Advanced Center for Diagnostic Imaging -Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo (CADI/FMVZ/USP).…”

Section: Methodsmentioning

confidence: 99%

Oropharyngeal morphological aspects of Arapaima gigas (Schinz, 1822)

et al. 2022

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The study of the functional anatomy of the digestive system of fish, in particular the oropharyngeal cavity, is of great importance because it allows inferences about the feeding habit, mechanisms of capture, selection, and processing of food carried out by different species. Thus, the aim of this study was to describe the anatomical adaptations of the oropharyngeal cavity of the pirarucu (Arapaima gigas Schinz, 1822) using scanning electron microscopy (SEM) techniques. The oropharyngeal cavity of six specimens of pirarucu was collected in juvenile phase, from Aquaculture Research Center at the Universidade Federal de Rondônia (UNIR), created for commercial purposes. The anatomical pieces were fixed in 10% buffered formalin and processed for SEM analysis. Anatomically, the oropharyngeal cavity of the pirarucu is composed of five pairs of branchial arches, apical portion of the tongue, floor of the tongue, lower pharyngeal area, and upper pharyngeal plate. In SEM, we observed that the mucosa of the apex of the tongue and the upper pharyngeal roof have a smooth texture and are covered by squamous cells with numerous small openings scattered over the surface. The portions of the floor of the tongue and the lower pharyngeal area, on the other hand, have adaptations in the form of a projectile and numerous sensory papillae, giving a rough texture to the region. Thus, the oropharyngeal cavity of pirarucu is adapted for the capture, apprehension, and swallowing of its prey, with signs of carnivory.

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Section: Methodsmentioning

confidence: 99%

Oropharyngeal morphological aspects of Arapaima gigas (Schinz, 1822)

et al. 2022

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“…The samples were cut into approximately 0.5 cm long sections and fixed in 10% paraformaldehyde, dried in a Balzers CPD 020 critical point apparatus (CADI-FMVZ-USP), glued with carbon glue on aluminum metal bases (stub). and sputting with gold on the EMITECH K550 (FMVZ-USP) metallizer, and subsequently analyzed and photographed on a LEO 435VP scanning electron microscope (FMVZ-USP) (17). Anatomy is of great importance in wild veterinary medicine, most of the findings were based on the techniques of dissection and study of the bones of various animals, which contributes a lot to the morphological sciences.…”

Section: Methodsmentioning

confidence: 99%

“…The procedures for macroscopic analysis include the separation and disarticulation of the skull, with cuts made with the aid of a scalpel, sectioning the skin and musculature, for access to the tongue. After removing the tongue from the samples, the musculature and cartilage of the tongue were separated until the hyoid bone structure was located (17).…”

Section: International Journal Of Advanced Engineering Research and Science (Ijaers)mentioning

confidence: 99%

Morphological studies of the composition of the Green Turtle (Chelonia mydas) hyoid bones found in Peruibe, Southern Coast of Brazil, Mosaic of Conservation Units Jureia-Itatins

Lopes¹,

Melo²,

Bressan³

et al. 2019

IJAERS

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Chelonia mydas, popularly known as the green turtle, is widely distributed in tropical seas and uses as its feeding area the coastal region of Peruíbe, located on the southern coast of São Paulo State. It has a solid cranial formation, without temporal openings and formed by the junction of several small bones, among them the hyoid bones that have the function of supporting the tongue. In a study conducted with 10 individuals of the same species and with similar sizes, the objective was to verify the presence of a differentiated bone structure that has not been described in any study until the present moment and to verify if it was not only anatomical variation generated by any anomaly. in the evaluated animals. The techniques used for verification were computed tomography (with window for bone parts: center -WL 300 and width -WW 1,500) and histological analysis. For histology, the hyoid bone structure was removed from the skull separation and disarticulation and tongue extraction. With the separation of the bones, cuts of approximately 0.5 cm in length were made and fixed in 10% paraformaldehyde, with subsequent application of the fixation procedure, for observation with scanning electron microscopy. The structure analyzed was identified in 6 individuals. This proves that it is part of the formation of the hyoid bone, so it is necessary to name this structure and carry out in-depth studies to know its importance and to verify if it is a modification that is affecting the species or if it is a genetic variation that affected population studied.

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Morphological Description of the Green Turtle Tongue (Chelonia Mydas)

Cited by 2 publications

References 6 publications

Oropharyngeal morphological aspects of Arapaima gigas (Schinz, 1822)

Oropharyngeal morphological aspects of Arapaima gigas (Schinz, 1822)

Morphological studies of the composition of the Green Turtle (Chelonia mydas) hyoid bones found in Peruibe, Southern Coast of Brazil, Mosaic of Conservation Units Jureia-Itatins

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