Meaning of blood-brain barrier
Pronunciation: (blud'brān'), [key]
— Physiol. Physiol.
- a layer of tightly packed cells that make up the walls of brain capillaries and prevent substances in the blood from diffusing freely into the brain: passage across the cell membranes is determined by solubility in the lipid bilayer or recognition by a transport molecule.
- blood-brain barrier (Thesaurus)