PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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neuroglia
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schwann cells
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neurons
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fibroblasts
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Detailed explanation-1: -Nervous tissue also includes cells that do not transmit impulses, but instead support the activities of the neurons. These are the glial cells (neuroglial cells), together termed the neuroglia. Supporting, or glia, cells bind neurons together and insulate the neurons.
Detailed explanation-2: -Ben Barres’ research has led to a greater appreciation of glial cells, which comprise 90 percent of the brain.
Detailed explanation-3: -The most numerous cellular constituents of the central nervous system are the non-neuronal, neuroglial ("nerve glue") cells that occupy the space between neurons. It has been estimated that there are roughly 360 billion glial cells, which comprise 80-90% of the cells in the CNS.
Detailed explanation-4: -Association neurons make up as many as 90% of the neurons of the nervous system. a. Multipolar neurons-these are the most commonly observed type of neuron possessing many dendrites and a single axon. Most association neurons are multipolar.