Table 1.
Protocol | Step 1 | Step 2 | Step 3 |
---|---|---|---|
Control | ECS 5 s | ACh 250 ms | — |
Antagonist | ECS + Antag 5 s | ACh + Antag 250 ms | — |
Onset kinetics | ECS 5 s | ECS + Antag 0–5000 ms | ACh + Antag 250 ms |
Recovery kinetics | ECS + Antag 5 s | ECS 0–5000 ms | ACh 250 ms |
The perfusion solutions contain extracellular solution (ECS) alone or with 300 μm ACh and/or various concentrations of antagonist (Antag).