Anatomical and radiographic study on the appendicular skeleton of the Tamandua mexicana

Authors

  • Ariana Calvo Varela Universidad Nacional, Costa Rica
  • Mauren Hernández Valerio Universidad Nacional, Costa Rica
  • Dominique Villalobos Morales Universidad Nacional, Costa Rica
  • Alison Fernández Mesén Universidad Nacional, Costa Rica
  • Katherina Alpizar Moreno Universidad Nacional, Costa Rica
  • Dennis Salas Zamora Universidad Nacional, Costa Rica
  • Daniel Miranda Fernández Universidad Nacional, Costa Rica
  • Laura Chaverri Esquivel Universidad Nacional, Costa Rica
  • Andréia Passos Pequeno Universidad Nacional, Costa Rica

DOI:

https://doi.org/10.15359/rcv.40-1.1

Keywords:

Osteology, Xenarthra, appendicular skeleton, double scapular spine, supratrochlear foramen

Abstract

Tamandua mexicana species has an important role in the natural ecosystem as a pest controller, feeding on insects such as termites. One of the main anatomical adaptations that this species has undergone has been to its thoracic extremities. Having detailed knowledge regarding the osteology of the thoracic limbs of T. mexicana provides a strong base for its application in clinical-surgical practice. In addition to collaborating with the greater understanding of animal physiology and behavior. Because there was a lack of description about the appendicular skeleton anatomy of this species, the objective of this investigation was to describe the osteology and the radiographic anatomy of the appendicular skeleton of the T. mexicana. The bones used belonging to the appendicular skeleton of two specimens of T. mexicana were properly cleaned using standard boiling and maceration techniques. The morphometry of the bones was performed using a measuring tape, pachymeter, and radiographies. With this study, it was possible to identify and describe the anatomical peculiarities such as the presence of the double scapular spine that shapes the caudolateral fossa, and at the end of the humerus, the supratrochlear foramen, in addition to a markedly prominent medial epicondyle. In addition, a difference was observed between metacarpal bones and the phalanges of the third digit compared to the other ones, as it is significantly thicker. These findings reinforced the evidence that a certain degree of anatomical specialization is a result of an adaptation of this species to its environment and diet. The knowledge provided by research like this contributes to the improvement of surgical techniques and diagnostic approach in the species.

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Published

2022-01-01

How to Cite

Anatomical and radiographic study on the appendicular skeleton of the Tamandua mexicana. (2022). Ciencias Veterinarias, 40(1), 1-26. https://doi.org/10.15359/rcv.40-1.1

How to Cite

Anatomical and radiographic study on the appendicular skeleton of the Tamandua mexicana. (2022). Ciencias Veterinarias, 40(1), 1-26. https://doi.org/10.15359/rcv.40-1.1

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