State why some areas of the brain and spinal cord are grey and some are white? Reasons
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The white matter of your brain and spinal cord is composed of bundles of axons. ... Damage to the white matter of your brain orspinal cord can affect your ability to move, use your sensory faculties, or react appropriately to external stimuli. Some people with damaged white matter suffer deficits in reflexive reactions.
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Myelinated nerve cells:
Some nerve cells of brain and spinal cord may be covered with myelin sheath and are called myelinated nerve cells.Such cells form the white matter of brain and spinal cord.White matter are found in the cortex of brain and surface of spinal cord.
Unmyelinated nerve cells
some nerve cells are not covered by myelin sheat and they form the grey matter.Grey matter are found in the cortex of spinal cord and surface of brain.
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