It's true, I am.
The nervous system is a network of specialized cells that regulates the work of the parts of the body. It processes information and causes reactions in different parts of the body. The human nervous system is divided into two categories: the peripheral nervous system and the central nervous system. Neurons generate and conduct impulses between and within the two systems.
The central nervous system includes all the nerves in the brain and spinal cord, and it contains the majority of neurons. The peripheral nervous system consists of sensory neurons that connect the spinal cord and the brain with the other parts of the body. The peripheral nervous system is subdivided into the somatic system and the autonomic system. The somatic nervous system is responsible for coordinating voluntary body movements (i.e. activities that are under conscious control). The autonomic nervous system is responsible for coordinating involuntary functions, such as breathing and digestion.
The interaction of the different neurons regulate an organism's perception of the world and its behavior. The sensory neurons of the somatic system transmit information about external stimulation from the skin, muscles, and joints to the central nervous system which then processes signals back to the muscles and glands.
The nerves of the autonomic system run to and from the internal organs regulating such processes as respiration, heart rate, and digestion. The autonomic nervous system has two divisions – the sympathetic and the parasympathetic which are antagonistic in their actions. The sympathetic division tends to act as a unit, while the parasympathetic division tends to affect one organ at a time. Their interaction is very complex though, and it is not understood yet.
The nervous system enables basic motor skills and sensing. The five classical senses (touch, taste, sight, smell, and hearing) are powered by the nervous system.
The central nervous system includes all the nerves in the brain and spinal cord, and it contains the majority of neurons. The peripheral nervous system consists of sensory neurons that connect the spinal cord and the brain with the other parts of the body. The peripheral nervous system is subdivided into the somatic system and the autonomic system. The somatic nervous system is responsible for coordinating voluntary body movements (i.e. activities that are under conscious control). The autonomic nervous system is responsible for coordinating involuntary functions, such as breathing and digestion.
The interaction of the different neurons regulate an organism's perception of the world and its behavior. The sensory neurons of the somatic system transmit information about external stimulation from the skin, muscles, and joints to the central nervous system which then processes signals back to the muscles and glands.
The nerves of the autonomic system run to and from the internal organs regulating such processes as respiration, heart rate, and digestion. The autonomic nervous system has two divisions – the sympathetic and the parasympathetic which are antagonistic in their actions. The sympathetic division tends to act as a unit, while the parasympathetic division tends to affect one organ at a time. Their interaction is very complex though, and it is not understood yet.
The nervous system enables basic motor skills and sensing. The five classical senses (touch, taste, sight, smell, and hearing) are powered by the nervous system.