Nidation

Nidation (from Latin nidus - nest), or implantation - the process of attachment and implantation of a blastocyst (an early stage of an embryo) into the uterine mucosa.

Nidation occurs 6-7 days after fertilization of the egg. By this time, the blastocyst consists of two parts - the inner cell mass, from which the embryo will subsequently develop, and the outer trophoblast, which provides nutrition and fixation of the embryo.

Upon contact with the endometrium (the mucous membrane of the uterus), the trophoblast begins to actively penetrate its tissue, destroying cells and forming a depression. At the same time, trophoblast cells secrete enzymes that soften the uterine wall. As a result, the blastocyst seems to “invade” the mucous membrane to a depth of 0.5-1 mm.

Thus, nidation occurs - attachment and implantation of the embryo in the uterus, necessary for its further development.

Nidation NIDATION verbatim: - “Nidation - see: implantation” - As soon as this process was successful, they put a plastic bag on my head and quickly lowered it into the water. After about fifteen minutes, I took a big breath of fresh air and looked around. I was in the green water at the very edge of the pool. And there were yachts and motor boats around. This is exactly what the photogenic, bright and colorful performance looks like, which we filmed during the filming of the reality show “Super love Island.” In this show, six young couples fight for their right to be together in fifty days. On each of the six