MORPHOLOGY OF THE TRACHEA AND LARYNX OF OPOSSUMS (Didelphis sp.)

Authors

  • Bruno Machado Bertassoli Universidade Federal de Minas Gerais
  • Amilton Cesar Santos Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP
  • Franceliusa Delys de Oliveira Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP
  • Daniela Moraes de Oliveira Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP
  • Antonio Chaves Assis-Neto Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP
  • Ana Flavia Carvalho UNIFEOB

DOI:

https://doi.org/10.5216/cab.v14i2.17044

Keywords:

Animal Anatomy

Abstract

Many species of opossums are created and used in laboratories, opening a wide field for studying and acquiring knowledge about the habits, diseases, diet and reproduction of these animals. The research aimed at describing the macroscopic and microscopical morphology of the trachea and larynx of opossums. In this study, five opossums (Didelphis sp.) were used. The trachea and larynx of the opossums were extracted, measured and processed by histology routine and dyed with Hematoxiline eosine, Picrosirius and Masson´ Trichrome. The larynx can be divided into: cricoid in a "V"-like shape, thyroid in a shield-like shape, arytenoid in shell-like shape, and epiglottis shaped like sheets, the first three structures showed hyaline cartilage, and the last structure showed elastic cartilage. The trachea showed a cylindrical form and it consists of 25 cartilaginous incomplete rings in a "C"-like shape, similar to amphibians, snakes, lizards and pigs; and different from domestic animals.

KEYWORDS: arytenoid; cricoid; epiglottis; thyroid; tracheal rings.

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Author Biographies

Bruno Machado Bertassoli, Universidade Federal de Minas Gerais

Amilton Cesar Santos, Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP

Franceliusa Delys de Oliveira, Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP

Daniela Moraes de Oliveira, Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP

Antonio Chaves Assis-Neto, Faculdade de Medicina Veterinária e Zootecnia - FMVZ-USP

Ana Flavia Carvalho, UNIFEOB

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Published

2013-06-27

How to Cite

BERTASSOLI, B. M.; SANTOS, A. C.; DE OLIVEIRA, F. D.; OLIVEIRA, D. M. de; ASSIS-NETO, A. C.; CARVALHO, A. F. MORPHOLOGY OF THE TRACHEA AND LARYNX OF OPOSSUMS (Didelphis sp.). Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 14, n. 2, p. 222–229, 2013. DOI: 10.5216/cab.v14i2.17044. Disponível em: https://revistas.ufg.br/vet/article/view/17044. Acesso em: 6 jul. 2024.

Issue

Vol. 14 No. 2 (2013)

Section

Veterinary Medicine

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