Figure 1.

Mechanical responses obtained from the rabbit anococcygeus muscle (A), rabbit corpus cavernosum (B), human corpus cavernosum (C), rat anococcygeus muscle (D), and mouse anococcygeus muscle (E) to EFS (30–50 V, 0.3-ms pulse duration, 5 Hz, for 5 s) in the absence and presence of l-NOARG (100 μM) as indicated. The mechanograms are original recordings of the responses and are representative of all experiments in each series (n = 4 for each).