抄録
Localization of carbonic anhydrase (CAHase) activity was studied electron microscopically on rat choroid plexus epithelial cells.
The ultracytochemical localization of CAHase activity was found in the microvilli and in the basal infoldings of the choroidal epithelial cells using Yokota's technique (1969). The carbonic anhydrase helps the formation of H+ and HCO3- from CO2. Intracellular H+ exchanges with extracellular sodium ion through the basal infoldings. The HCO3- moves into the cerebrospinal fluid through the plasmalemma of the microvilli.
