abdominal prevertebral plexus, the network of nerve fibers surrounding the abdominal aorta. It extends from the aortic hiatus of the diaphragm to the bifurcation of the aorta into the right and left common iliac arteries. Along its route, it is subdivided into the celiac plexus, the abdominal aortic plexus, and the superior hypogastric plexus.
