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The Folding of the Embryo


3 weeks

From The Biology of Prenatal Development.Buy Now

Script: Medzi 3 až 4 týždňami sa objavuje náznak tela a je možné ľahko identifikovať mozog, miechu a srdce embrya popri žĺtkovom vaku.

Rýchly rast spôsobí poskladanie pomerne plochého embrya. Tento proces zapracuje časť žĺtkového vaku do výstelky tráviaceho systému a vytvorí hrudnú a brušnú dutinu vyvíjajúceho sa človeka.

4 TÝŽDNE

All ages referenced to fertilization, not last menstrual period.
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