B. M. Bertasoli

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G. A. B. Silva

Erika Cristina Jorge

Universidade Federal de Minas Gerais

A. C. Santos

C. A. F. Mancares

Andressa Steffen Barbosa

Universidade do Estado de Santa Catarina

ÍG

Íria Gabriela Dias dos Santos

Universidade Federal de Minas Gerais

Rayan Silva de Paula

Universidade Federal de Minas Gerais

Amilton César dos Santos

Centro Universitário da Fundação de Ensino Octávio Bastos

Thaís Borges Lessa

University of Missouri

Aline Gonçalves Lio Copola

Universidade Federal de Minas Gerais

Cooperative Institutions

Universidade Federal de Minas Gerais

Universidade de São Paulo

Universidade Brasil

Universidade do Estado de Santa Catarina

Fundação de Apoio à Escola Técnica

Hospital Estadual Centra

Centro Universitário de Belo Horizonte

Centro Universitário da Fundação de Ensino Octávio Bastos

Universidade Federal da Bahia

Universidade Federal do Piauí

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Morphological characteristics of the neonate of the white-eared opossum (Didelphis albiventris Lund, 1840) (Metatheria: Didelphidae)

Brazilian Journal of Biological Sciences (2015)

B. M. Bertasoli A. C. Santos Thaís Borges Lessa Íria Gabriela Dias dos Santos Aline Gonçalves Lio Copola

Didelphis

Bandicoot

White (mutation)

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Citations (3)

Swine placenta and placentation

Brazilian Journal of Biological Sciences (2015)

B. M. Bertasoli Amilton César dos Santos Rayan Silva de Paula Andressa Steffen Barbosa G. A. B. Silva

During pregnancy the viviparous vertebrates develop a complex system of nutritional membranes surrounding the fetus. In place of the union or apposition of the fetal membranes with the uterine lining is formed the placenta. The placental types may be categorized into several complementary levels that reflect placental characteristics, being the swine placenta classified as chorioallantoic, diffuse, pleated, epitheliochorial and cross to counter-current. Structures, as the yolk sac, have function even before the appearance of the chorioallantoic placenta. The areola is also an accessory structure of the placenta, which may be found in ungulates. The extraembryonic membranes are linked intimately in the placentation, and these are important in swine early pregnancy, since the definitive placenta starts developing by the 18th day of gestation. Modifications in the swine placenta, like the presence of areolas, might have arisen as domestic species adaptions in order to supply nourishing needs during the development of concept.

Placentation

Chorioallantoic membrane

Conceptus

Apposition

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Citations (8)