<b>Anatomia do coração de fetos de Guinea pig em final de gestação (Cavia porcellus [Linnaeus, 1758])</b><br>DOI: 10.5007/2175-7925.2011v24n3p91

Abstract

Anatomy of the heart of Guinea pig fetuses in late gestation (Cavia porcellus [Linnaeus, 1758]).This study has been developed in order to describe the anatomy of the heart of Guinea pig (Cavia porcellus [Linnaeu,1758]) fetuses in late gestation and to obtain anatomical characteristics that can support and help the understanding of the physiology of fetal circulation. Fetuses have been collected from three female in late gestation, which were described and photographed macroscopically, trhough light microscopy in HE and

Characterization of Embryonic and Fetal Development of Necromys Lasiurus (Rodentia, Cricetidae)

“…Data on embryology and organogenesis in rodents are available for the mouse (Mus musculus) [8,9,11]; rat (Rattus norvegicus) [12]; Oligoryzomys sp. [10]; guinea pig (Cavia porcellus) [15,16]; some hystricomorphic species, such as the paca (Cuniculus paca), agouti (Dasyprocta leporine), cavy (Galea spixii) and capybara (Hydrochaeris hydrochaeris) [13,17]; coypu (Myocastor coypus) [14]; and related species such as the rabbit (Oryctolagus cuniculus) [18][19][20][21]. In contrast, embryology references for N. lasiurus are not yet available in the literature.…”

“…In N. lasiurus, the atrium and ventricle were visible in the developing heart at 14 gestational days. The heart of N. lasiurus fetuses at gestational day 20.5 is similar to the guinea pig [15]. The authors noted the layers of the heart wall, endocardium, myocardium, and epicardium and the structure of the muscle fibers, making it possible to examine similarities between the two species [1].…”

“…These two families are the most abundant of the order Rodentia. Published data on embryology and organogenesis can be found for these groups [8][9][10][11][12], as well as for histricomorph rodents [13][14][15][16][17]; and related species such as the rabbit (Oryctolagus cuniculus) [18][19][20][21].…”