Question

The part of the human body which is called as second brain, is_______

Answer 1

Hint: The nervous system of human beings is quite complex and is further divided into certain regions which are controlled by several special organs. A good example is the enteric nervous system which is also termed as the second brain of the body. Also, certain specialized centres are present in the brain which control and regulate the different physiological activities.

Complete answer:
The enteric nervous system of our gut is the part of the human body which is called a second brain. It consists of a mesh-like system of neurons that governs the function of the gastrointestinal tract.

Some information regarding this mechanism is given by the following points :
- The autonomic nervous system has the enteric nervous system(ENS) as its key division. The ENS is also known as the intrinsic nervous system.
- The enteric nervous system is also called the second brain of the human body.
- There occurs a network-like system in the enteric nervous system that controls the function of the gastrointestinal tract.
- This massive network of connections checks the complete digestive tract from the esophagus to the anus.
- The enteric nervous system is so massive that it can work as an independent unit without input from our central nervous system.
- The functions of the enteric nervous system are supervised by the brain and central nervous system.
- The central nervous system communicates with the gut by the help of sympathetic and parasympathetic divisions of the autonomic nervous system. These sympathetic and parasympathetic branches are the involuntary section of the nervous system that regulates heart rate, breathing, and digestion.

Note: The brain in our head is mainly a command center for our nervous system. It accepts signals from sensory organs of our body and in the reaction, it sends information to the muscles generating feeling and movement.
The second brain is located in our digestive system. It controls each and every physiological as well as chemical processes occurring during digestion. The alimentary canal is also known as gut which is a long tube extending from mouth to anus.