Electrical muscle responses during spontaneous rhythmic pyloric activity. A, Simultaneous recordings of two different fibers in the p2 muscle, one from the anterior end, and one from the middle. B, Simultaneous recordings of a p2 and a p8 fiber. C, Simultaneous recordings of a p2 and a p10 fiber. Extracellular nerve recordings in all panels show the phasing of the pyloric rhythm. The magnified insets indicate the 1:1 relationship of EJPs in the paired recordings (dashed lines).