Similar term(s): BBB.
A protective barrier between brain blood vessels and brain tissues that allows
blood to flow freely to the brain but prevents most substances in the
bloodstream from reaching the brain cells.
It protects the brain from the effect of many harmful substances but makes it
difficult to deliver drugs to the brain.
Español: Barrera hematoencefálica
Français: Barrière hémato-encéphalique