We know better now. We know that that are actually nerves! A lot of them!
We know that this area of the body is a control center! The road to Rome if you will! Nerves which lead to the liver, spleen, pancreas, gastric excretions and of course the supra anal or above the anal what nots..
(I am not a doctor)
Think about it. all of those things involved in formulating your gut instincts, how you process information and which juices you will excrete upon each thought or experience.
Our experiences are formed in layers, each evolving from the last one.
have an awesome day:)