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