inhibitory junction potential

in·hib·i·tor·y junc·tion po·ten·tial (IJP),

hyperpolarization of smooth muscle produced by stimulation of inhibitory nerves.
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Without exception, stimulation at point B distal to the bifurcation of the LAAV nerve produced inhibitory junction potentials (IJPs) in the muscle fibers of the ipsilateral valve ([ILLUSTRATION FOR FIGURE 4B OMITTED], n = 8), the contralateral valve in the same segment (n = 3), and both the ipsilateral and contralateral valves in the next anterior segment (n = 6).

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