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The blood-brain barrier allows
The blood-brain barrier allows
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Solution
The correct option is A glucose
In the capillaries that form the blood–brain barrier, endothelial cells are wedged extremely close to each other, forming tight junctions. The tight gap allows only small molecules like glucose, lipid-soluble molecules, and some gases (oxygen, carbon dioxide) to pass freely through the capillary wall and into brain tissue.
In the capillaries that form the blood–brain barrier, endothelial cells are wedged extremely close to each other, forming tight junctions. The tight gap allows only small molecules like glucose, lipid-soluble molecules, and some gases (oxygen, carbon dioxide) to pass freely through the capillary wall and into brain tissue.
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