A useful component of current placentation and trophoblast research are a number of trophoblast cell lines that have been derived from a number of different sources including term placenta, …

The trophoblast (from Greek trephein: to feed; and blastos: germinator) is the outer layer of cells of the blastocyst. Trophoblasts are present four days after fertilization in humans. [1]

The intermediate trophoblast on the villous surface forms trophoblastic columns that anchor the fetal part of placenta to the implantation site. In all other locations, the trophoblast is referred to …

Dec 15, 2025 · After a continuous process of cleavage and compaction, the morula gives rise to the trophoblast and embryoblast, which are the primary components of the blastocyst.

The trophoblast During implantation the trophoblast differentiates itself into two layers: the syncytiotrophoblast (ST) the cytotrophoblast (CT) The syncytiotrophoblast forms an external …

trophoblast: The membrane of cells that forms the wall of a blastocyst during early pregnancy, and also provides nutrients to the embryo and later develops into part of the placenta.

Aug 21, 2025 · The trophoblast forms the interface where oxygen and nutrients pass from maternal blood to fetal circulation, and carbon dioxide and waste products move from the fetus …

The trophoblast plays an important role later in the development of the placenta or afterbirth. The conceptus makes contact with the uterine lining about the fifth or sixth day after conception.…

Jun 5, 2022 · The trophoblast originates from the trophectoderm (see below) and differentiates into multiple specialized trophoblast subpopulations and phenotypes. They either differentiate …

Herein, we summarize the present knowledge about human placental development, its stem cells, progenitors and differentiated cell types in the trophoblast epithelium and the villous core.