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The Endowment for Human Development
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The Morula and Blastocyst


5 days

From The Biology of Prenatal Development.Buy Now

Script: Die embrio se verdelende selle neem 3 tot 4 dae na bevrugting 'n sferiese vorm aan, en word die embrio 'n morula genoem.

Teen 4 tot 5 dae vorm 'n holte binne-in die bal vol selle en word die embrio 'n blastosist genoem.

Die selle binne-in die blastosist word die binneste selmassa genoem en is die voorganger van die kop, liggaam, en ander strukture wat nodig is om 'n mens te vorm.

All ages referenced to fertilization, not last menstrual period.
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The Morula and Blastocyst
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