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The Endowment for Human Development
The Endowment for Human Development
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The Maturing Heart


6 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: 4-prekatno srce je večinoma že popolnoma razvito. V povprečju sedaj udari 167-krat na minuto.

Električna aktivnost srca, ki so jo zabeležili pri 7 tednih in pol, razkriva podobne vzorce utripa kot pri odraslih ljudeh.

All ages referenced to fertilization, not last menstrual period.
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Nipple Formation
Nipple Formation
Hand Movement
Hand Movement
The Maturing Heart
The Maturing Heart
The External Ear
The External Ear
Hiccups & Startle Response
Hiccups & Startle Response
Joining Hands
Joining Hands
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