Fig. 3.

Functional K⁺ channels in single astrocytes are well-preserved after tissue dissociation. A and B: V_m recordings from a syncytial coupled astrocyte (left) and a single astrocyte (right) that responded to elevation of bath K⁺ concentration ([K⁺]_e) from 3.5 to 23.5 mM with similar V_m depolarization amplitude. C: high K⁺-induced V_m depolarization (ΔV_m) was comparable between single and syncytial coupled astrocytes. Values are means ± SE; numerals on bars indicate the number of observations.