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Fig. 9. Effects of JSTX (5x106 mol l1) on
EJPs in myocardial cells. The EJPs were evoked by stimuli applied to the
cardiac ganglion trunk at 1 Hz. The EJPs in normal saline (control) were
blocked at 30 min after the onset of JSTX application
(5x106 mol l1 JSTX). The EJPs
partially recovered at 120 min after washing out of JSTX (wash). The numbers
on the left side of the traces show the membrane potentials of the cardiac
muscle at the beginning of the recordings.