2006
DOI: 10.11606/issn.1678-4456.bjvras.2006.26492
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Morfologia da junção atrioventricular em Iguana iguana (Reptilia-Iguanidae)

Abstract: A área da junção atrioventricular (AJAV), incluindo nó e feixe atrioventriculares foi investigada em sete corações de iguana comum ou verde (Iguana iguana), usando microscopia de luz. Animais adultos, de ambos os sexos, foram capturados no Pantanal, Brasil. Todos os corações foram fixados em formaldeído tamponado 10% (pH 7,2) por 24 horas, incluídos em parapast de acordo com métodos de rotina e seccionados com 5µm de espessura. Na iguana, a AJAV consiste de uma massa de fibras musculares mergulhada em uma quan… Show more

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Cited by 2 publications
(2 citation statements)
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“…A vast majority of studies concludes that there is no anatomically distinct atrioventricular node in reptiles (Davies & Francis, ; Farrell et al ., ), with much less evidence in favour (Prakash, ; Jurado, Franco & Morceli, ). Instead, the atrioventricular canal is entirely myocardial and resembles the embryonic condition of mammals and birds before the atrioventricular node is morphologically distinct (Jensen et al ., ).…”
Section: Reptile Heartsmentioning
confidence: 99%
“…A vast majority of studies concludes that there is no anatomically distinct atrioventricular node in reptiles (Davies & Francis, ; Farrell et al ., ), with much less evidence in favour (Prakash, ; Jurado, Franco & Morceli, ). Instead, the atrioventricular canal is entirely myocardial and resembles the embryonic condition of mammals and birds before the atrioventricular node is morphologically distinct (Jensen et al ., ).…”
Section: Reptile Heartsmentioning
confidence: 99%
“…In the ageing human heart, calcium deposits have been reported in the right and left fibrous trigones (Tohno et al, 2007 ; Trainini et al, 2021 ; Trainini et al, 2022 ). Whilst the presence of Ossa cordis occurs mainly in larger species, cartilage within the cardiac skeleton ( Cartilago cordis ), which does not appear to develop into bone, has been observed in many species including hamsters, snakes, chickens, quails, chinchillas, iguanas, terrapins, horses, dogs and rhinoceros (Duran et al, 2004 ; Erdogan, Lima, & Perez, 2014 ; Jurado et al, 2006 ; Lopez et al, 2003 ; Lopez, Duran, & Sans‐Coma, 2000 ; Lopez, Fernandez, Duran, & Sans‐Coma, 2001 ; Schmack, 1974 ; Warchulska et al, 2016 ; Young, 1994 ). This review summarizes the literature available regarding the Ossa cordis in different mammalian species.…”
Section: Introduction To Ossa Cordismentioning
confidence: 99%