Figure 7. In vivo intracavernous pressure measurements.

A and B, sample ICP recordings from litter-matched Slo^+/+ and a Slo^−/− mice, respectively. The upper traces of both panels show three responses to stimulation of the cavernous nerve (the initial brief pulse results from flushing the line prior to stimulation). The lower traces show the same three responses on an expanded time scale, i.e. as higher time-resolution displays of the cavernous nerve stimulation-induced pressure increases. The bars below the traces represent the stimulation period of ∼ 60 s. C, average oscillation amplitude and frequency, and peak amplitude of nerve-induced pressure increases from the experiment shown in panels A and B(n, number of stimulations; N, number of Slo^+/+ and Slo^−/− mice; *P < 0.05, **P < 0.01).