SciELO - Scientific Electronic Library Online

vol.37 issue4Micro-Architecture Study of the Normal Infant Auditory Ossicles with Micro-Computed TomographyMorphological and Biomechanical Implications of Cuboid Facet of the Navicular Bone in the Gait author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


International Journal of Morphology

On-line version ISSN 0717-9502


MELO, Luana Félix De et al. Analysis of the Green Turtle Esophagus Chelonia Mydas (Linnaeus, 1758), Testudines, Cheloniidae. Int. J. Morphol. [online]. 2019, vol.37, n.4, pp.1391-1396. ISSN 0717-9502.

The esophagus is a muscular tube whose function is to transport food from the mouth to the stomach and basically contain the same layers as the rest of the digestive tract. The morphological knowledge of structures involved in basic physiological processes in organisms is extremely important in the acquisition of ecological and evolutionary knowledge about species. This study produces morphological information proving the structures found in the green turtle's esophagus. The animals were dissected according to the methodology used by Wyneken, allowing analysis of external and internal morphological characteristics of the esophagus. The samples were processed for microscopic analysis by light and scanning electron microscopy. It was observed that the esophagus presents thin and conical dermal papillae facing the stomach throughout the mucosa to the gastroesophageal portion, decreasing its size at the end of its extension, covered by a thick keratin layer on keratinized pavement epithelial tissue. It is concluded that the esophagus of Chelonia mydas is covered by a layer of conical keratinized dermal papillae important to exert the mechanical and protective function of the mucosa of this organ, considering that the feeding of these animals is extremely abrasive, besides serving as protection so that the food does not return.

Keywords : Chelonia mydas; Histology; Esophagus; Keratin.

        · abstract in Spanish     · text in English     · English ( pdf )