Histology and Embyology: Foetal memberanes

Foetal memberanes

FOETAL MEMBERANES

In the development of a higher vertebrate embryos like those of chick and mammals, only part of the cleavage cell mass forms the actual embryo, whereas other parts lie outside the embryonic territory and are called extra embryonic.
The extra embryonic parts form foetal membranes, which are the auxiliary organs to protect the embryo and provide for its nutrition and excretion. All these membranes eventually are discarded.
The placenta is a distinctive membrane that is developed only in higher mammals (placentalia) chiefly from the chorion, allantois and the uterine lining. The umbilical cord connects the foetus and its placenta.

Last modified: Tuesday, 24 August 2010, 7:19 AM

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      - Foetal memberanes
      - Foetal membranes in chick
      - Placentation in higher mammals
      - Placenta
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      - Foetal memberanes
      - Foetal membranes in chick
      - Placentation in higher mammals
      - Placenta
      - Classification of Placenta
      - Stages in prenatal period
      - Twins and Twinning
      - PODCAST
      - Quiz
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VAN 211: Veterinary Histology and Embryology (2+2)

Foetal memberanes

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