The human nervous system is perhaps the most complex system of any organism. The human brain alone contains over 100 billion nerve cells, and each nerve cell can have up to 10000 connections to other nerve cells. read more
The peripheral nervous system includes nerves that carry sensory messages to the central nervous system and nerves that send information from the CNS to the muscles and glands. There are three types of Nerves in the human body naming Sensory nerves, Motor nerves and Mixed nerves. read more
The autonomic nervous system is composed of the same types of neurons and motor nerves found throughout the human body, but it operates by different rules. Instead of relying upon sensory input from the outside world, it automatically works through its own cycles. read more