blastulaksi

Blastulaksi is a term used in developmental biology to describe the process of blastula formation, a crucial stage in the early embryonic development of most animals. The blastula is a hollow ball of cells, called blastomeres, that forms after the zygote undergoes a series of rapid cell divisions known as cleavage. This hollow space within the blastula is called the blastocoel.

The exact structure and formation of the blastula can vary depending on the organism and the amount of yolk present in the egg. In some cases, such as in many amphibians and mammals, the blastula forms a simple sphere of cells with a central cavity. In other organisms with a large amount of yolk, like many fish and birds, the blastula may be a cap of cells on top of the yolk, or form a flattened disc.

The blastula stage is significant because it represents a transition from simple cell division to the beginning of cellular differentiation and morphogenesis. The cells within the blastula, though initially appearing similar, are already being organized into distinct layers that will eventually give rise to the different tissues and organs of the developing embryo. Following blastulaksi, the embryo enters the next major stage of development, gastrulation, where these cell layers further organize and begin to form the primary germ layers.