| The intermesenteric plexus lies along the abdominal aorta between the superior and inferior mesenteric arteries. It is primarily formed by the upper lumbar splanchnic nerves (L1 and L2), but also receives fibers from the aorticorenal and superior mesenteric ganglia. However, it is important to note that it does not contain any vagal parasympathetic fibers - vagal fibers do not descend, on the surface of the aorta, below the superior mesenteric and renal plexuses. That is why the hindgut, supplied with blood by the inferior mesenteric artery, is also supplied with parasympathetic nerves via the pelvic splanchnic nerves. |  |
