Web Bloodbrain barrier BBB is a semi-permeable barrier encompassing microvasculature of central nervous system CNS. Web The blood-brain barrier is made up of tightly packed cells in the brains capillaries that prevent harmful substances from entering the brain. Stage Specific Control Of Oligodendrocyte Survival And Morphogenesis By Tdp 43 Elife Web The different cells and structures contributing to developing this barrier are summarized along with the different functions that BBB plays at the brain-blood. . Web The blood-brain barrier is a physiological barrier that keeps many substances that circulate in the rest of the body from getting into the central nervous. Web between brain tissue and blood47 Besides the amounts of Fig. Web Schematic diagram shows the normalyoung bloodbrain barrier BBB and dysfunctionalaged BBB. Web The blood-brain barrier BBB is a diffusion barrier which impedes influx of most compounds from blood