Physiology Nervous System 36415660 Blood brain barrier is formed by? A Foot processes of astrocytes and endothelial cells B Foot processes of oligodendrocytes and endothelial cells C Foot process of microglia and endothelia cells D Foot process of glial cells and endothelial cells High-Yield Explanation Ans. (a) Foot processes of astrocytes and endothelial cells