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The Endowment for Human Development
The Endowment for Human Development
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Germ Layers and Organ Formation


14 days

From The Biology of Prenatal Development.Buy Now

Script: Nakon otprilike 2 ½ sedmice, epiblast je već stvorio 3 specijalna tkiva ili klicina omotača koje se zovu ektoderm, endoderm, i mesoderm.

Iz ektoderma se razvijaju brojne strukture, između ostalog mozak, kičmena moždina, živci, koža, nokti, i kosa.

Endoderm stvara osnove disajnog sistema kao i probavnog trakta, Izgrađuje dijelove velikih organa kao što su jetra i pancreas, tj. gušterača.

Mezdoerm formira srce, bubrege, kosti, hrskavično tkivo, mišiće, krvne stanice, i druge strukture.

All ages referenced to fertilization, not last menstrual period.
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