Trophoblast lineage [34

At the transition between morula and blastocyst, the tro-phoblast lineage is the first to differentiate from the inner cell mass, the embryoblast (Fig. 3.2). Only after attachment of the blastocyst to the endometrial epithelium, further differentiation of the trophoblast occurs. Exact knowledge

and capillaries

Fig. 3.2 During implantation of the blastocyst, trophoblast cells in direct contact with maternal tissues syncytially fuse and give rise to the syncytiotrophoblast. Only this multinucleated tissue is able to penetrate the uterine epithelium and implant the developing embryo.

and capillaries

Fig. 3.2 During implantation of the blastocyst, trophoblast cells in direct contact with maternal tissues syncytially fuse and give rise to the syncytiotrophoblast. Only this multinucleated tissue is able to penetrate the uterine epithelium and implant the developing embryo.

of the processes in the human is still lacking, but it is anticipated that at this stage the first syncytial fusion of trophoblast cells takes place. Fusion of those trophoblast cells in direct contact with maternal tissues generates the very first syncytiotrophoblast and only this layer is able to penetrate the endometrial epithelium (Fig. 3.2).

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Pregnancy Diet Plan

Pregnancy Diet Plan

The first trimester is very important for the mother and the baby. For most women it is common to find out about their pregnancy after they have missed their menstrual cycle. Since, not all women note their menstrual cycle and dates of intercourse, it may cause slight confusion about the exact date of conception. That is why most women find out that they are pregnant only after one month of pregnancy.

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