HISTOLOGY
NERVOUS TISSUE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Neuroglia that are positioned between neurons and capillaries to form the blood-brain barrier are the:
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astrocytes
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oligodendrocytes
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microglia
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ependymal cells
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Explanation:
Detailed explanation-1: -Research indicates that astrocytes perform many functions: They help form a blood-brain-barrier by secreting chemicals that regulate how capillary endothelial cells transfer substances into the CNS from the blood. They release lactose made from glucose, which neurons use for energy.
Detailed explanation-2: -Astrocytes are essential for the formation and maintenance of the BBB by providing secreted factors that lead to the adequate association between the cells of the BBB and the formation of strong tight junctions.
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