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Meanings of blastula in anglès
Sphere of cells formed during early embryonic development in animals.
Related terms
Usage of blastula in anglès
1
E stage with thirty-two cells; F blastula; G gastrula in longitudinal section.
2
The round cavity, filled with fluid, inside the real blastula is the segmentation-cavity.
3
The latter (blastula) is palingenetic, and precedes the formation of the gastrula.
4
Also, in every case, the gastrula develops from the blastula by curving or invagination.
5
This real blastula only differs from that of the primitive ova in its chemical composition.
6
We call this layer the blastoderm, and the sphere itself the blastula, or embryonic vesicle.
7
A blastula, with wide embryonic cavity (blastocoel, bl), g incipient invagination.
8
Sagittal section of a hooded-embryo (depula) of triton (blastula at the commencement of gastrulation).
9
Longitudinal section of the blastula of a shark (Pristiurus) at the beginning of gastrulation.
10
Vertical section of the blastula of a hen (discoblastula).
11
Longitudinal section through the blastula of a shark (Pristiuris).
12
Formerly this real blastula was generally believed to be equivalent to the embryonic vesicle of the mammal.
13
Embryonic vesicle of triton (blastula), outer view, with the transverse fold of the primitive mouth (u).
14
From it is developed in the same manner in all the Placentals, by repeated cleavage, a multicellular blastula.
15
The frog-embryo now represents a modified embryonic vesicle or blastula, with hollow animal half and solid vegetal half.
16
This interesting blastula is very important.
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Translations for blastula
portuguès
català
Blastula through the time