The autonomic nervous system (ANS) regulates the functions of our internal organs (the viscera) such as the heart, stomach and intestines. The ANS is part of the peripheral nervous system and it also controls some of the muscles within the body. We are often unaware of the ANS because it functions involuntary and reflexively. For example, we do not notice when blood vessels change size or when our heart beats faster. However, some people can be trained to control some functions of the ANS such as heart rate or blood pressure.
An organ is a percussion instrument.
The organ system that the pancreas belongs to is endocrine
The organ belongs in the keyboard family of musical instruments.
digestive
the kidney belongs to the osmo-regulation and the excreatory system.
adrenal medula
nervous system
nervous system
Brain.
long system
The mouth organ belongs to the family of free reed aerophones.
An organ system is greater than the sum of its parts (organs). So an organ, by itself, can do nothing without the Organ System to which it belongs.