Blastocoel
Blastocoele | |
---|---|
Details | |
Carnegie stage | 3 |
Days | 5 |
Precursor | morula |
Gives rise to | primitive yolk sac |
Anatomical terminology |
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.
References
- ^ "The Carnegie stages". Retrieved 2007-10-13.