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The Endowment for Human Development
The Endowment for Human Development
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The Highly Complex Brain


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: At 8 weeks the brain is highly complex and constitutes almost half of the embryo's total body weight.

Growth continues at an extraordinary rate.

All ages referenced to fertilization, not last menstrual period.
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The Developmental Period
The Developmental Period
Ovaries Identifiable
Ovaries Identifiable
The Highly Complex Brain
The Highly Complex Brain
Right- and Left-Handedness
Right- and Left-Handedness
Rolling Over
Rolling Over
Spontaneous Movement
Spontaneous Movement
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