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The Endowment for Human Development
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Heart and Circulatory System


3 weeks

From The Biology of Prenatal Development.Buy Now

Script: Gava hucreyên xwînê yên pêsîn li nav kîsika zer(yolk sac)xwanê dibin, damarên xwînê li seranser embrîyo pêk tînin, û tubular heart derdikeve holê.

Hema hema yekser, dilê ku pir zû mezin dibe xwe xwe wekî odeyên serî xwe dipeçîne û destbi pês ketin dike.

Dil, 3 hefte û rojek pistî fertilizationê destbi ledanê dike.

Circulatory system Sîstema bedenê ya yekan e, yan grubek ji organên giredayî ye, jibo ser ketina rewsa fonksîyonel.

All ages referenced to fertilization, not last menstrual period.
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