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Cards In This Set
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Name the five main stages of human brain development
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Proliferation, Migration, Differentiation, Myelination, Synaptogenesis
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Describe Proliferation
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New cells produced in neural tube beginning when embryo is 2 1/2 weeks old
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Describe Migration
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Immature neurons migrate to final destination in brain beginning about 8 weeks. Once there, they aggregate with other cells to form brain structures.
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Describe Differentiation
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After migration, neurons begin to look differently than other cells because they develop axons and dendrites.
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Describe Myelination
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Glial cells form insulating sheath around cell's axon, only happens to some neurons, most of it happens postnatally
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Describe Synaptogenesis
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This is the forming of synapses; happens at different times depending on specific area of brain; mostly occurs postnatally; influenced by endogenous (genetic) and exogenous (experience) factors
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Define apoptosis
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Cell death; "pruning process;" "serves to "fine-tune" brain development
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