a nerve, the great splanchnic nerve, arises, and runs, back to a
ganglionated nervous network, just behind the coeliac artery, into
which the vagus also enters; this is the coeliac ganglion, and together
with a similar superior mesenteric ganglion around the corresponding
artery, makes up a subsidiary visceral nervous network, the solar
plexus. A similar and smaller nervous tangle, bearing an inferior
mesenteric ganglion, lies near the inferior mesenteric artery.