![](http://www.alamy.com/thumbs/6/C2F78888-D2E3-486C-8DEB-76646ED78C47/2AD18WA.jpg)
The blood-brain barrier is a highly selective permeable membrane that controls what substances pass from the blood stream into the brain.
Size: 6060px × 4039px
Photo credit: © CAROL & MIKE WERNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: artwork, astrocyte, barrier, bbb, blood, blood-brain, brain, capillary, cell, cells, circulatory, endothelial, erythrocyte, foot, illustration, junction, labelled, leucocyte, membrane, nervous, neuron, permeable, process, protein, red, system, tight, vessel, white