The nervous system consists of a complex network of nerves and cells. Through the complex networks of nerves and cells the messages carry from and to the brain and spinal cord to different parts of the body. The nervous system comprises both the Central nervous system and Peripheral nervous system. The Central nervous system is counting of the brain and spinal cord and The Peripheral nervous system is counting of the Somatic and the Autonomic nervous systems. Commonly, the nervous system is counting two types of cells such as neurons and neuroglia (cristinafisiologia.org).
Neurons are the basic unit of the nervous system. Every cell in the nervous systems encloses with neurons. Nerve in the neurons forms “finger-like” structure stretches out from the cell body of the nerves. The nerve contains of axons and dendrites which are functioning in direction and signals transmission process. Commonly, axons are distracting signals from the cell body of the nervous system. Axons are the long nerve forms in the nervous system that may lean out to transmit signs to various areas. Around the cell body, dendrites are the parts which convey the signals. Generally dendrites are more various, shorter and more stretched than axons. Both, axons and dendrites are packed together within the nerves. Through the means of nerve impulses, the nerves carry the motions between the brain and spinal cord as well to the other organs in the body. There are three types of neurons such Multi-polar neurons, Bi-polar neurons, and Pseudo-unipolar neurons. Motor neurons convey data from the central nervous system to organs, and muscles. Sensory neurons send information to the central nervous system from inward organs or from outer stimuli. Inter neurons hand-off signals between motor and sensory neurons (biology.about.com).
Dendrites are the tree-like structures in neurons that extend away from the cell body to receive messages from other neurons at synapses; not all neurons have dendrites.
Synapses enable the dendrites from a single neuron to interact and receive signals from many other neurons.
Axons are tube-like structures that send signals to other neurons, muscles, or organs; not all neurons have axons. Neurons are divided into four major types: unipolar, bipolar, multipolar, and pseudo-unipolar. Unipolar neurons have only one structure extending from the soma; bipolar neurons have one axon and one dendrite extending from the soma.
Multipolar neurons contain one axon and many dendrites; pseudo-unipolar neurons have a single structure that extends from the soma, which later branches into two distinct structures.
Central Nervous System (CNS):
For the nervous system, the central nervous system is the processing center. The two major organs of central nervous system are the brain and spinal cord. The central nervous system (CNS) is counting the brain, brain stem, and spinal cord that process data and provide output to the body. The spinal cord sends the sensory information to the brain. The brain is process and interprets this sensory information (biology.about.com).
The central nervous system (CNS) along with the peripheral nervous system (PNS) comprises the entirety of the body's nervous system which regulates and maintains its most basic functions. The CNS is the main control core of the body; it takes in sensory information, organizes and synthesizes data,