mesenteric ganglion

noun

Medical Definition of mesenteric ganglion

: either of two ganglionic masses of the sympathetic nervous system associated with the corresponding mesenteric plexus:

a : a variable amount of massed ganglionic tissue of the inferior mesenteric plexus near the origin of the inferior mesenteric artery

— called also inferior mesenteric ganglion

b : a usually discrete ganglionic mass of the superior mesenteric plexus near the origin of the superior mesenteric artery

— called also superior mesenteric ganglion