GENERAL KNOWLEDGE

Detailed explanation-1: -The brain controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body. The central nervous system (CNS) is composed of the brain and spinal cord.

Detailed explanation-2: -The nervous system is an organ system which is responsible for sending messages from the brain and spinal cord to all the parts of the body and back to the brain. The response to any stimuli is a characteristic behaviour and property of the living organisms and they react to stimuli with the help of the nervous system.

Detailed explanation-3: -The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.