STUDY OF THE ARTERIAL CORONARY CIRCULATION IN THE DOG (Canis familiaris)

Büll, Marilena Longo; Martins, M. R. F. B.

doi:10.4067/s0716-98682002000200001

Cited by 6 publications

(8 citation statements)

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“…The artery usually originated from the paraconal interventricular branch although in one case it originated from the circumflex branch. Similar findings were observed in dogs (Büll and Martins 2002;Noestelthaller et al 2007;Barszcz et al 2013).…”

Section: Discussionsupporting

confidence: 74%

Topography of coronary arteries and their ramifications in the goat

et al. 2019

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The aim of this study was to investigate the morphology of the coronary arteries of the goat's heart. The study was carried out on 36 hearts of adult females dairy goats, belonging to two breeds, aged 7-12 years, with an average body weight of 37 kg. A distinct view of coronary arteries and their branches was obtained by filling them with dyed synthetic latex (LBS 3060) or Batson's No. 17. In all studied goats the common trunk of the left coronary artery was divided into the interventricular paraconal branch and the circumflex branch. The branch of the interventricular septum originated in the interventricular paraconal branch. In 25 individuals (69%) the circumflex branch ended with small ramifications on the atrial surface of the heart. In 11 individuals (31%), the vessel extended in the subsinuosal interventricular groove into the subsinuosal interventricular branch. The right coronary artery was less developed than the left coronary artery. In 35 individuals (97%) the right coronary artery ended with small ramifications on the atrial surface of the heart. In one goat (3%) the vessel reached the subsinuosal interventricular groove and extended into the subsinuosal interventricular branch.

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Section: Discussionsupporting

confidence: 74%

Topography of coronary arteries and their ramifications in the goat

et al. 2019

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“…Anastomosis between the interventricular branches was described from 6.5% of 32 (Noestelthaller et al, 2005) to 80% of 30 (Büll & Martins, 2002) domestic dogs. Hadžiselimović et al (1974) recognized that interarterial anastomoses were more often in the wild than domestic mammals.…”

Section: Discussionmentioning

confidence: 99%

“…During exercise, approximately 10% of the blood is ejected during systole and distributed through the coronary arteries (Schummer et al, 1981). This functional significance has stimulated anatomical studies on the coronary arteries and their main branches in Canis lupus familiaris (Andretto et al, 1973; Biasi et al, 2013; Büll & Martins, 2002; Donald & Essex, 1954; Moore, 1930; Oliveira et al, 2011; Pianetto, 1939), Felis catus (Biasi et al, 2012; Borelli, 2014; Monfared et al, 2013), Panthera tigris (Pérez & Lima, 2007), Felis silvestris , Vulpes vulpes (Hadžiselimović et al, 1974), Panthera leo (Schiller, 1957), Panthera pardus , Arctonix collaris (Zhang et al, 2008), Mustela nigripes (Truex et al, 1974), Mustela putorius (Evans & An, 2014), Arctocephalus australis (Pérez et al, 2008), and Pusa hispida (Smodlaka et al, 2009). Among domesticated species, coronary artery anomalies are more commonly described in dogs and cattle, but they are not always associated with significant dysfunctions as in humans (Scansen, 2017).…”

Section: Introductionmentioning

confidence: 99%

Coronary anatomy in neotropical carnivores: A comparative analysis

Viotto‐Souza,

Santos,

Abidu‐Figueiredo

et al. 2023

The Anatomical Record

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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.

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“…coronaria dextra and a. coronaria sinistra emerge from the ascending aorta to supply the heart (1-3, 6, 7, 9, 14, 15, 17, 21, 23, 24, 27, 30, 31). A. coronaria dextra originates from the level of the valvula semilunaris dextra at the initial level of the aorta (3,9,15). A. coronaria dextra runs between the truncus pulmonalis and the auricula dextra, then to the sulcus coronarius and back as the r. circumflexus dexter (11,17,28,29).…”

Section: Introductionmentioning

confidence: 99%

“…A. coronaria dextra runs between the truncus pulmonalis and the auricula dextra, then to the sulcus coronarius and back as the r. circumflexus dexter (11,17,28,29). R. circumflexus dexter yields r. proximalis atrium dextri, r. intermedius atrii dextri and r. distalis atrium dextri for atrium dextrum, and r. coni arteriosi, r. proximalis ventriculi dextri, r. intermedius atrii dextri and r. distalis atrium dextri for ventriculus dexter, r. proximalis ventriculi dextri, r. marginis ventricularis dextri (9,15,20,26,31,32).…”

Section: Introductionmentioning

confidence: 99%