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9 Cards in this Set

  • Front
  • Back
Process in development of neurons
proliferation, migration, differentiation, mylination, synaptogenesis
Proliferation
—the production of new cells
Migration
—move toward their eventual destinations in the brain
Differentiation
—at first, a primitive neuron looks like any other cell, but then it
differentiates, forming the axon and dendrites that show its distinctive shape. The
axon grows first
neurons adapt to their location: if you transplant a young neuron it
develops the properties characteristic of its new location (children
immigrants analogy)
myelination
—process by which glia produce the insulating fatty sheaths that accelerate transmission in many axons (forms first in spinal cord) continues for decades
Synaptogenesis
—formation of synapses, continues throughout life
Neural Darwinism
—we start with more neurons and synapses than we keep; synapses form haphazardly, and then a selection process keeps some and rejects others
nerve growth factor (NGF)
a protein that promotes the survival and growth of the axon
nerve growth factor (NGF)
a protein that promotes the survival and growth of the axon