Tłumaczenia dla hasła „allantois“ w angielsko » arabski słowniku

allantois

allantois ZOOL.

لقاقني

allantois ZOOL.

غشاء سجقي

Przykłady jednojęzyczne (niezredagowane i niesprawdzone przez PONS)

angielski

It is formed by the fusion of the mesodermal layers of two developmental structures: the allantois and the chorion.

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An amnion, chorion, and allantois are present during embryonic life.

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On the outer side, the amniotic sac is connected to the yolk sac, to the allantois and, through the umbilical cord, to the placenta.

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To compensate for this, the chorion and the allantois fuse together to form the chorioallantoic membrane.

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A very small allantois is found in modern amphibians.

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The first of these is the cranial portion which is continuous with the allantois and forms the bladder proper.

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Between the 5th and 7th week of development, the allantois will become the urachus, a duct between the bladder and the yolk sac.

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This bend becomes dilated into a pouch, which constitutes the endodermal cloaca; into its dorsal part the hind-gut opens, and from its ventral part the allantois passes forward.

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The allantois, along with the amnion and chorion (other embryonic membranes), identify humans, and other mammals, as amniotes.

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In other words, the allantois takes no share in its formation.

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