Blastocoele
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| Blastocoele | ||
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| Blastocyst | ||
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| Blastocyst with an inner cell mass and trophoblast. | ||
| Carnegie stage | 3 | |
| Days | 5 | |
| Precursor | morula | |
| Gives rise to | primitive yolk sac | |
| Dorlands/Elsevier | b_14/12187664 | |
A blastocoel(e) or blastocele (also called blastocyst cavity,[1] cleavage cavity or segmentation cavity) is the fluid-filled central region of a blastocyst. A blastocoele forms during embryogenesis when a zygote (a fertilized ovum) divides into many cells through mitosis.
The adjectival of "blastocoel(e)" is blastocoelic.
A blastocoel can be described as the first cell cavity formed as the embryo enlarges. It is essential for later gastrulation.
[edit] References
- ^ The Carnegie stages. Retrieved on 2007-10-13.
[edit] See also
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