Figure 2. Paired intracellular recordings from different cells lying in the gastric antrum.

A, a record from a circular muscle cell and a simultaneous record of smaller amplitude from a longitudinal muscle cell. Aa, part of the same record (indicated by a bar labelled a beneath the record) on an expanded time base. B, a record from a circular muscle cell and a simultaneous record of larger amplitude from an ICC_my. Ba, the indicated part of the same record on an expanded time base. C, two simultaneous records from two independently impaled circular muscle cells. Ca, the indicated part of the same record on an expanded time base. The voltage and time calibration bars apply to all traces. The membrane potentials of the circular smooth muscle layer, ICC_my and longitudinal layer were −62, −63 and −60 mV, respectively.