Fig. 12From: Fluid and ion transfer across the blood–brain and blood–cerebrospinal fluid barriers; a comparative account of mechanisms and rolesTransporters localized to membranes of the endothelial cells of the blood–brain barrier. The Na+, K+-ATPase and the Na+/H+-exchangers, NHE1 and NHE2, are also present on the opposite sides of the cell but at lower densitiesBack to article page