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The Endowment for Human Development
The Endowment for Human Development
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Slideshow: The Developing Brain

MRI Model of the Brain

#91, Slide 19 of 21

6 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Note:

The cerebral hemispheres first appear at about 4

Label Key:

1. mesencephalon
2. diencephalon
3. telencephalon (cerebral hemispheres)
4. metencephalon
5. spinal cord
All ages referenced to fertilization, not last menstrual period.
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