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9 Cards in this Set
- Front
- Back
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gene |
a unit of DNA on a chromosome that encodes instructions for making a particular protein molecule; the basic unit of heredity |
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stages of fetal brain development |
proliferation, migration, differentiation, aggregation, synaptogenesis |
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proliferation |
occurs in the ventricular zone & causes daughter cells to become fixed post mitotic |
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ventricular zone |
inside of neural tube |
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migration |
growth cones crawl forward as they elaborate the axons training behind them. Their extension is controlled by cues in their outside environment that ultimately direct them toward their appropriate targets |
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radial glia |
act as guides for the migration of neurons |
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differentiation |
neurons become fixed post mitotic & specialized; develop processes (axons & dendrites), NT making ability, and electrical conduction |
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aggregation |
like neurons move together and form layers |
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synaptogenesis |
axons (with growth cones on the end) form a synapse with other neurons or tissue |
