ABSTRACT
Apart from its important role in maintaining urinary continence, prostatic and bladder neck sympathetic innervation is also essential for ejaculation. Erectile function, by contrast, is subserved by parasympathetic fibers, which pass in the so-called neurovascular bundles of Walsh lying posterolateral to the prostate; these fibers are capable of producing vasodilatation within the corpora cavernosa9 (Figure 15). In this periprostatic location, these nerves are vulnerable to injury during either radical prostatectomy or radical cystoprostatectomy performed for the surgical excision of urological malignancy (Figure 16).
