Coronary anatomy in neotropical carnivores: A comparative analysis.

Autor: Viotto-Souza W; Universidade Federal de Uberlândia (UFU), Campus Umuarama, Uberlândia, MG, Brazil.; Fundação Presidente Antonio Carlos (UNIPAC), Uberlândia, MG, Brazil., Santos ALQ; Universidade Federal de Uberlândia (UFU), Campus Umuarama, Uberlândia, MG, Brazil., Abidu-Figueiredo M; Universidade Federal Rural do Rio de Janeiro (UFRRJ), Campus Seropédica, RJ, Brazil., Kasper CB; Universidade Federal do Pampa (UNIPAMPA), Campus São Gabriel, RS, Brazil., de Carvalho AD; Universidade Federal do Pampa (UNIPAMPA), Campus Uruguaiana, RS, Brazil., de Souza-Junior P; Universidade Federal do Pampa (UNIPAMPA), Campus Uruguaiana, RS, Brazil.
Jazyk: angličtina
Zdroj: Anatomical record (Hoboken, N.J. : 2007) [Anat Rec (Hoboken)] 2024 Jun; Vol. 307 (6), pp. 2149-2161. Date of Electronic Publication: 2023 Dec 06.
DOI: 10.1002/ar.25357
Abstrakt: This study aims to investigate the anatomy of coronary arteries and their primary branches in neotropical carnivores, given the functional significance of coronary circulation and the limited existing descriptions in this order. For this purpose, coronary arteries were dissected, and their branches were counted in 74 hearts from 20 species belonging to five families: Canidae, Mustelidae, Procyonidae, Mephitidae, and Felidae. In all specimens of the suborder Caniformia, the subsinuosal interventricular branch originated at the end of the circumflex branch of the left coronary artery (LCA). In contrast, in all hearts of Felidae specimens, the subsinuosal branch was derived from the right coronary artery. Among the 50 neotropical specimens of the suborder Caniformia, 13.1 ± 5.2 ventricular branches originated from the LCA and only 4.6 ± 1.4 from the right (p < 0.0001), characterizing a consistent left dominance. However, in the 24 specimens of the Felidae family, 10.5 ± 4.0 ventricular branches were found originating from the LCA and 10.4 ± 3.4 from the right, with no difference between the means (p = 0.82), defining a balanced pattern. It is suggested that the type of coronary circulation may correlate with the phylogeny of carnivorans.
(© 2023 American Association for Anatomy.)
Databáze: MEDLINE
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