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The Endowment for Human Development
The Endowment for Human Development
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The Fetus Yawns


10 weeks

From The Biology of Prenatal Development.Buy Now

Script: Entro 10 settimane la sollecitazione della palpebra superiore causa un'oscillazione all'indietro dell'occhio.

Il feto sbadiglia e spesso apre e chiude la bocca.

All ages referenced to fertilization, not last menstrual period.
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