Who is the King of your body? Or the Queen?

Who is the monarch in charge of your body?  Or is it ruled by a cooperative or a democracy or a dictator?

According to my boy,  the king of his body is his head.

For me, I 'd have to say the Queen of me is my stomach.  If it is empty or too full, everything else shuts down.

Where is your centre? Where is the nerve that sends out the first impulse, sending it travelling out through your body, issuing orders, extracting levies and demanding obedience?