What Is the Significance of the Blood-Brain Barrier?
The blood-brain barrier (BBB) is a specialized barrier that protects the central nervous system. It is formed by endothelial cells of the brain's capillaries, which are connected by tight junctions. The BBB restricts the passage of substances from the bloodstream into the brain, thereby protecting neural tissue from toxins and pathogens while regulating the transport of essential nutrients and waste products.
