Nervous System
The nervous system is an essential and complex system in the human body. It is responsible for coordinating the various organs, tissues and cells that carry out the various functions of the body in order to maintain homeostasis. It involves electrical and chemical signals that travel through neurons and can be divided into the central nervous system (including the brain and the spinal cord) and the peripheral nervous system. The nervous system has a wide range of functions including sensation, movement, thinking and memory. It is made up of nerve cells (neurons) which convert information from the environment into electrical signals that are then transferred to the central nervous system. This information is then made use of by the body in order to take action in response to the external environment. The nervous system has many significant uses; it is responsible for the way we react to our environment and it is essential for communication within the body and between cells. The nervous system is constantly adapting and changing to better understand and respond to the ever-changing environment.
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