Geyser Membrane

Geyser membrane

The geyser membrane is a thin transparent membrane that surrounds the mammalian embryo in the early stages of embryonic development. It was first described in 1930 by the American embryologist Charles Heuser (1885-1965), after whom it received its name.

The geyser membrane is formed during the fertilization of an egg by a sperm and separates the developing embryo from the yolk sac. It consists of fibrillar material and prevents contact between embryonic and extraembryonic tissues. The geyser membrane plays an important role in the normal development of the embryo, maintaining the spherical shape of the blastocyst and preventing premature implantation.

By the time the blastocyst is implanted into the wall of the uterus, the geyser membrane becomes thinner, but does not disappear completely. It is retained in the embryoblast region, preventing trophoblast invasion. After implantation, the geyser membrane gradually degrades and completely disappears by the 12-14th day of development.

Thus, the geyser membrane is a temporary extracellular formation that performs a protective function in the early stages of mammalian embryogenesis. Its existence is critical for normal preimplantation morphogenesis of the embryo.

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The geyser membrane is a noncellular barrier that maintains ionic equilibrium between the cell and the extracellular environment. This physiological process consists in the fact that the membrane creates a cover and only selective passage of molecules and ions through the membrane occurs through the pores. This ensures the mobility of ions through metabolic processes. The exchange of ions under conditions of proton exchange is also being studied, this is explained by the essential importance of the membrane for the transport of atoms in the cell. In addition, this membrane is also called a barter membrane, since metabolism occurs inside the cell without the cells entering the phase of suspended animation. The structural function is to support