FIG. 2.

Distribution of receptive fields and proportions of afferent fiber types recorded in the splanchnic (A) and pelvic (B) pathways. Mechanosensitive splanchnic nerve receptive fields tended to cluster at the base of the bladder, whereas mechanosensitive pelvic nerve receptive fields were distributed throughout the bladder. The principal fiber type in the splanchnic pathway responded only to von Frey probing of the bladder (serosal), whereas stretch-responsive muscular and muscular/urothelial fibers characterized the pelvic pathway.