A complex network of nerve fibres in the pelvic region. The hypogastric plexus distributes sympathetic fibres from the lumbar paravertebral ganglia and the aortic plexus, parasympathetic fibres from the pelvic nerve, and visceral afferents. The bilateral pelvic plexus is in its lateral extent. ... (12 Dec 1998) ... 
[n] - a plexus of nerves serving the pelvic viscera
plexus hypogastricus noun a plexus of nerves serving the pelvic viscera