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Figure 2


Fig. 2. (A) Simultaneous extracellular recordings from two of the frontal ganglion (FG) efferent nerves: the frontal connective (FC) and medial pharyngeal nerve (MPN), in an isolated FG preparation. Addition of crustacean cardioactive peptide (CCAP; 10-5 mol l-1) reversibly increased the burst frequency. The left-hand traces show records played at a higher sweep speed to reveal phase relations between different components of the FG central pattern generator. (B) Application of 10-5 mol l-1 CCAP on an in situ FG resulted in appearance of air bubbles in the crop (broken outline).