The Nervous system in Human body   How many nervous systems are in the human body? How does the nervous system work? What are the 4 main functions of the nervous system? How many nervous systems are i

The Nervous system in Human bodyHow many nervous systems are in the human body?How does the nervous system work?What are the 4 main functions of the nervous system?How many nervous systems are in the human body?What is the main function of the central nervous system?What happens if the central nervous system is damaged?RUNNING HEAD: UNIT 6 ASSIGNMENTUnit 6 AssignmentSC 235The Nervous system in Human bodyThe nervous system in the human body is made up of all the nervous cells and acts as thebody’s communication array with the outside world and many systems within the body. Thenervous system uses the body’s senses to collect information, process the information, and then trigger a reaction such as a person screaming in a haunted house when there is a loud noise. The nervous system has billions of nerve cells, or neurons, throughout the body which help communicate. The neurons have a cell body, each with various extensions, the shorter being called dendrites that act as the cell’s antenna and receive the signals to the cell body.