Figure 5.

Extracellular Ca²⁺-dependence of RVD. Relative change in volume of CFT1-LCFSN cells, measured before and after replacement of the isotonic solution at time t = −3 min with a Ca²⁺-free isotonic solution and at time t = 0 min with a Ca²⁺-free hypotonic solution. Measurements were made on eight cells.