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Contribution to the study of the blood supply of the sinus node in zebu cattle / Contribuição ao estudo da irrigação arterial do nó sinu-atrial em bovinos azebuados

Borelli, Vicente.
Braz. j. vet. res. anim. sci; 8(1): 59-118, 1969.
Artigo em Português | VETINDEX | ID: vti-727670

Resumo

The arterial blood supply of the sinus node has been studied in 100 zebu cattle (87 males and 13 females). In 75 hearts (75.0% ± 4.3) the sinus node is nourished through collaterals of both the a. coronaria dextra and the a coronaria sinistra: in 73 hearts (73.0% ± 4.4) from the ramus proximalis atrii sinistri plus, in 48 cases (48.0% ± 5.0) the ramus intermedins atrii dextri, in 5 cases (5.0% ± 2.2) the ramus proximalis atrii dextri, in 3 cases (3.0% ± 1.7) the ramus distalis atrii dextri, in 13 cases (13.0% ± 3.4) the ramus proximalis atrii dextri plus the ramus intermedins atrii dextri and in 4 cases (4.0% ± 2.0) the ramus intermedins atrii dextri plus one collateral from the ramus ventricularis dexter. In the remaining 2 cases (2.0% ± 1.4) the arterial blood supply to the sinus node is through the ramus proximalis atrii dextri, plus one collateral from the ramus ventricularis dexter, in 1 case (1.0% ± 1.0), and by that collateral plus the ramus intermedins atrii dextri, in 1 case (1.0% ± 1.0). In 19 hearts (19.0% ± 3.9) the sinus node is nourished exclusively by collaterals of the a. coronaria dextra: in 2 cases (2.0% ± 1.4) only by the ramus proximalis atrii dextri, in 17 cases  (17.0% ± 3.8) from the ramus proximalis atrii dextri plus, in 13 cases (13.0% ± 3.4) the ramus intermedins atrii dextri, in 3 cases (3.0% ± 1.7) the ramus distalis atrii dextri and in 1 case (1.0%
O artigo apresenta resumo em inglês.
Biblioteca responsável: BR68.1