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The Endowment for Human Development
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Response to Light


6 months, 2 weeks

From The Biology of Prenatal Development.Buy Now

Script: Tegen week 26 produceren de ogen tranen.

De pupillen reageren al na 27 weken op licht. Deze reactie regelt de hoeveelheid licht die het netvlies bereikt tijdens het leven.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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