Cerebral cortex Guide, Meaning , Facts, Information and Description
The cerebral cortex is the extensive outer layer of gray matter of the cerebral hemispheres, and is involved in higher brain functions, including sensation, voluntary muscle movement, thought, reasoning, and memory. The grooves between the Gyri (known as sulci) on the brain's surface results in much of the cortex being buried; over 60% of the cerebral cortex in primates is buried and not visible from the surface.Cerebral cortex is typically 2-4mm thick.
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The standard areas of cortex (isocortex) is characterized as having six distinct layers. From outside inward:
Laminar pattern
However, there are no actual borders between the layers, and neurons cross layer boundaries with their dendrites and axons trees all over. The pyramidal cells (the majority of the neurons) span at least three layers, and in many cases all the layers. Thus it is not obvious that the layers have any functional significance.
Based on the differencies in lamination the cerebral cortex can be classified into two major groups:
This is an Article on Cerebral cortex. Page Contains Information, Facts Details or Explanation Guide About Cerebral cortex Classification
Auxiliary classes are:
Based on supposed developmental differencies the following classification also appears:
In addition, cortex may be classified on the basis of gross topographical conventions into the following:Related topics