Topographic and morphological aspects of the spleen of Bradypus variegatus (SCHINZ, 1825)

Autores/as

DOI:

https://doi.org/10.26605/medvet-v17n4-5824

Palabras clave:

anatomy; bradypodidae; lymphoid organ; clinic; surgery.

Resumen

Sloths are wild animals with arboreal habits, with slow metabolism, found in tropical forests from South America to Central America. However, the lack of knowledge of their anatomy does not favor the conservation of the species in veterinary care centers, due to its peculiar anatomy. Therefore, the objective of this study was to describe the topography and morphology of the spleen of the species Bradypusvariegatus, in order to collect more information to support and assist in the clinical-surgical processes of the species. Eight corpses of B. variegatus, previously fixed with 20% formaldehyde and preserved in 30% saline solution, were dissected for the macroscopic study of the spleen. A healthy animal, living in semi-captivity, was assigned to perform a tomography of the abdominal region, for observation of the spleen, while two specimens were destined for the microscopic study of the organ immediately after death. Based on the data obtained, the spleen presented a topography and tissue composition similar to other mammals, but its morphology, absence of visceral lienal hilum and anatomical arrangement in the abdominal cavity differed from most domestic and wild animals.  

Descargas

Los datos de descargas todavía no están disponibles.

Citas

Bachettini, P.S.V. Atlas of medical histology. Pelotas: UCPel Pelotas, 2009.

Banks, W.J. Lymphatic system. In: Banks, W.J. Applied veterinary histology. 2nd ed. São Paulo; Manole, 1999. p.629.

Barr, F.; Gaschen, L. BSAVA Manual of canine and feline ultrasonography. Quedgeley: British Small Animal Veterinary Association, 2011. p.100-109.

Barreto, M.L.; Amorim, M.J.A.A.L., Falcão, M.V.D. Análise morfológica e morfométrica das gônadas de preguiça (Bradypus variegatus, Schinz, 1825). Pesquisa Veterinária Brasileira, 33(9): 1130-1136, 2013.

Carvalho, M.A.M.; Moura, W.R.A.; Silva, E.R.D.F.S.; Neves, W.C.; Bezerra, D.O.; Carvalho, C.E.S.; Junior, A.M.C.; Filho, M.F.C. Topography, external morphology and arterial distribution of the spleen in agoutis (Dasyprocta prymnolopha). Interdisciplinary Journal of Biosciences, 2(1): 16-22, 2017.

Cesta, M.F. Normal structure, function, and histology of the spleen. Toxicologic Pathology, 34(5): 455-465, 2006.

Dyce, K.M.; Wensing, C.J.G.; Sack W.O. Text book of veterinary anatomy. 4th ed. Rio de Janeiro: Elsevier, 2010. p.1-739.

Fonseca Filho, L.B.; Albuquerque, P.V.; Alcântara, S.F.; Nascimento, J.C.S.; Miranda, M.E.L.C.; Andrade, G.P.; Pereira, L.B.S.B.; Menezes, F.B.A.; Mesquita, E.P.; Amorim, M.J.A.A.L. Macroscopic description of small and large intestine of the sloth Bradypus variegatus. Acta Scientiae Veterinariae, 46: 1613-xxx, 2018.

Fossum, T.W, Caplan, E.R. Cirurgia do Sistema Hemolinfático. In. Fossum, T.W. Cirurgia de pequenos animais. 4ª ed. Rio de Janeiro: Elsevier, 2014. p.685-700.

Galíndez, E.J.; Estecondo. S.; Casanave, E.B. The spleen of a specialy adapted mammal, the little hairy armadillo Chaetophractus vellerosus (Xenarthra, Dasypodidae). A light and electron microscopic study. International Journal Morphology, 24(3): 339-348, 2006.

Germinaro, A.; Branco, E.R.; Miglino, M.A.; Didio, L.J.A.; Souza, W.M. The arterial segments in capybara spleen (Hydrochoerus hydrochaeris). Brazilian Journal of Veterinary Research and Animal Science, 34(4): 196-202, 1997.

Hayssen, V. Bradypus tridactylus (Pilosa: Bradypodidae). Mammalian Species, 42(839): 1-9, 2009.

ICVGAN. International Committee on Veterinary Gross Anatomical Nomenclature. Nomina anatômica veterinaria. 6th ed. Ithaca: Cornell University, 2017. p.160.

Junqueira, L.C.; Carneiro, J. Histologia básica: texto e atlas. 12ª ed. Rio de Janeiro: Guanabara Koogan, 2013. p. 4.

König, H.E.; Liebich, H.G. Anatomia dos animais domésticos: texto e atlas colorido. 6a ed. Porto Alegre: Artmed, 2016. p.804.

Merighi, A. Veterinary topographic anatomy. Rio de Janeiro; Revinter, 2010. p.356.

Montgomery, G.G.; Sunquist, M.E. Habitat selection and use by two and three-toed sloths. In: Montgomery, G.G. The ecology of arboreal folivores. Washington: Smithsonian institution,1978. p.329-359.

Morais, H.L.; Argyle, D.J.; O’brien, R.T. Diseases of the spleen. In: Ettinger, S.J.; Feldman, E.C. Textbook of veterinary internal medicine.7th ed. Amsterdan: Saunders Elsevier, 2010. p.810-819.

Nowak, R.M. Walker’s mammals of the world. 6th ed. Baltimore and London: The Johns Hopkins University. 1999.

Ribeiro, I.F.; Leal, L.M.; Oliveira, F.S.; Simões, L.S.; Moraes, P.C.; Miglino, M.A.; Machado, M.R.F.; Sasahara, T.H.C. Morphology and topography of the paca spleen (Cuniculus paca Linnaeus, 1766). Brazilian Veterinary Research, 37(10): 1177-1180, 2017.

Santos, A.L.Q.; Vieira, L.G.; Hirano, L.Q.L.; Kaminishi, A.P.S.; Mendonça, J.S.; Rodrigues, T.C.S.; Siqueira, S.E. Study of the arterial vascularization of the spleen in wild boar (Sus scrofas crofa, Linnaeus-1758). PUBVET, 7(10): 1-10, 2013.

Schanaider A.; Silva P.C. Use of animals in experimental surgery. Acta Cirúrgica Brasileira, 19(4): 445-447, 2004.

Sisson, S.; Grossman, J.D. Anatomy of domestic animals. 5th ed. W.B. Philadelphia: Saunders, 1975. p.601.

Tolosa, E.M.C.; Rodrigues, C.J.; Behmer, O.A.; Freitas, N.A. Manual of techniques for normal and pathological histology. São Paulo: Manole, 2003. p.1-331.

Treuting, P.M.; Dintzis, S.M. Comparative anatomy and histology: a mouse and human atlas (Expert Consult). 1st ed. Chantilly: Academic Press,, 2011. p.1-474.

Wetzel, R.M. Systematics, distribution, ecology, and conservation of South American Edentates. In: Mares, M.A.; Genoway, H.H. Mammalian biology in South America. Pittsburgh: The University of Pittsburgh, 1982. p. 345-375.

Xavier, G.A.A.; Mota, R.A.; Oliveira, M.A.B. Ungueal marking in: free-living brown-throated sloths Bradypus variegatus (Schinz, 1825) at the Caetés Ecological Station, Paulista-PE, Brazil. Edentata, 11(1): 18-21, 2010.

Publicado

2023-12-28

Cómo citar

Fonseca Filho, L. B. da, Alcântara, S. F. de, Miranda, M. E. L. C. de, Andrade, G. P. de, Albuquerque, P. V. de, Torres, S. M. de, Mesquita, E. P. de, Ribeiro, A. G., Amorim Júnior, A. A. de, Nascimento, J. C. dos S., & Amorim, M. J. A. A. L. (2023). Topographic and morphological aspects of the spleen of Bradypus variegatus (SCHINZ, 1825). Medicina Veterinária, 17(4), 210–216. https://doi.org/10.26605/medvet-v17n4-5824

Número

Sección

Animais Selvagens