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11 Cards in this Set
- Front
- Back
Proliferation is the production of ...
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new cells.
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Myelination is the process by which...
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glia produce fatty sheathes that accelerate transmission in many vertebrate axons.
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Myelin forms first in the...
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spinal cord and then in the hindbrain, midbrain, and forebrain.
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Myelination continues gradually for...
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Decades.
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New neurons can be generated in a mature brain in...
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the olfactory receptors which have a half life of 90 days due to chemical exposure from the outside world.
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Stem cells in the nose...
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remain immature throughout life.
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Periodically a stem cell will...
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divide with one cell remaining immature while the other differentiates to replace a dying olfactory receptor.
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Stem cells are also located in the interior of the brain and occasionally...
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divide to form daughter cells.
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These daughter cells migrate to the...
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oflactory bulb and transform into glia cells or neurons.
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Chemicals known as immunoglobulin and chemokines...
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guide neuron migration.
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A deficit of immunoglobulins and chemokines leads to...
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impaired migration, decreased brain size, decreased axon growth, and mental retardation.
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