The Correct Answer is D
The blood-brain barrier (abbreviated BBB) is composed of endothelial cells packed tightly in brain capillaries that more greatly restrict passage of substances from the bloodstream than do endothelial cells in capillaries elsewhere in the body. Processes from astrocytes surround the epithelial cells of the BBB providing biochemical support to the epithelial cells.
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MAHE 2000 MCQs
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