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Found Blastula 7 times.

Displaying results 1 to 10.

1. Blastocoel
The fluid-filled cavity in the middle of a blastula , an early stage in the development of the embryo .

2. Blastocoel
The fluid-filled cavity at the center of a blastula .

3. Blastocyst (blastodermic vesicle)
A stage in the development of a mammalian embryo just after the blastula stage, where the hollow ball of cells becomes two layers of cells - one layer, called the trophoblast, is at one end of the embryo and attaches it to the wall of the uterus so that it can receive nutrition during its development. The other is a single-cell layer which surrounds the blastocoele , the fluid-filled hollow part of the ball.

4. Blastula
A hollow ball of cells formed at the end of the cleavage stage of embryo nic development.

5. Blastula
A ball of cells surrounding a fluid-filled cavity (the blastocoel) that is produced by the repeated cleavage of a zygote .

6. Gastrula
A hollow ball of cell s with one part of the ball pushed into the interior blastocoele (called an invagination). This early stage of animal embryonic development forms just after the blastula stage. By the end of the gastrulation process, the different embryonic germ layer s ( endoderm , ectoderm , and sometimes mesoderm ) can clearly be identified.

7. Gastrulation
A process during early embryonic development in animals in which large-scale cell migration occurs and different cell types emerge to form the germ layer s ( endoderm , ectoderm , and sometimes mesoderm ). The stage takes place just after the blastula stage and begins with an invagination (indenting) of the hollow ball of cells. During this process, the embryo is called a gastrula .

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