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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: Mu wiiki biri ne kitundu ka 'epiblast' kabakakuze era obubiri obwo mugaso busatu, oba obubiri oyitabwa 'germ layers,' aka 'ectoderm,' 'endoderm,' naka 'mesoderm'.

'Ectoderm' evamu ebitundu bwomubiri bingi gamba nga obwongo, olugongogongo oba (spinal cord) obusimo bwo mubiri, olususu, enjala, ne'nuiri.

'Endoderm' yefuka mu akabili abika kumawugwe, era ne omubu ogutwa emere ne ne nebwenda, era evamu ne bitundu bwo'mubiri ebyomugaso gamba nga ekibumba ne kalululwe oba 'pancrease'.

'Mesoderm' yo evamu oba efukamu omutima, ensigo, amagumba, 'cartilage' oba magumba'magonuu, ebinywa, bu 'cells' byo musaayi, ne bitundu byo mubiri ebilala.

All ages referenced to fertilization, not last menstrual period.
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