Autonomic Nervous System (ANS) and Insintric Cardiac Nervous System (ICNS)

There are some areas in the nervous system of human that are mostly not controllable my mind, but still affected by emotions:

• Autonomic Nervous System (ANS), for the heart and other autonomic mechanism in body
• Insintric Cardiac Nervous System (ICNS), for the heart

ANS is inside the brain in multiple regions. ICNS is inside the heart with around 50,000 neurons. ICNS is interesting as the brain of the heart, but ICNS is very small, even ant brain has 250,000 neurons.