Entering week 7, the various “buds” from a number of fetal organs begin to appear. Preparation of embryo made by “buds” is very mature and very detailed. Oral cavity, for example. In molars of embryo, in addition to already have a group of cells that is the origin of teeth, there is cells that [...]
At the time of entering the middle of the second month of pregnancy there is already beginning the process of skin tissue formation in embryo. After embryo’s skin precursor cells derived from ectodermic layer (outermost layer), finish build muscle, then the cells of embryo’s ectodermic will form two layers of skin on it. [...]
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