Peripheral nerve fiber of prostatic neurovascular bundle

Peripheral nerve fibers of the prostatic neurovascular bundle (NVB) are fine, unmyelinated and myelinated autonomic nerve fibers embedded within a loose network of small vessels and connective tissue running along the posterolateral aspect of the prostate and towards the corpora cavernosa of the penis. These fibers are responsible for delivering autonomic nerve input essential for penile erection and contribute to urinary continence. Their anatomy is highly variable and complex, often not forming a discrete "bundle" but rather a network of intermingled nerves and vessels. They are not a single, molecularly defined protein or receptor, but rather represent a heterogeneous population of peripheral autonomic nerve fibers largely of pelvic origin. These fibers lack a unique molecular identity that can be targeted by specific drugs. Their clinical relevance relates primarily to the need for anatomical preservation during radical prostatectomy to preserve erectile function and urinary continence, not as a drug target by themselves[1][2][3][4][5]. This entry is not a classical molecular target such as a receptor, enzyme, ion channel, transporter, or transcription factor, but instead an anatomical structure composed of numerous nerve fibers. It does not possess a canonical abbreviation or established synonyms in the drug target literature, nor does it serve as a direct target for drugs or diagnostics. Damage to these fibers during prostate surgery is a primary cause of postoperative erectile dysfunction and incontinence[2][4][5].

Other names

Cavernous nervePelvic neurovascular bundle (contextual)Periprostatic nerve fiber (contextual)