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NERVOUS SYSTEM

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The nervous system consists of the brain, spinal cord, and a complex network of neurons. This system is responsible for sending, receiving, and interpreting information from all parts of the body. The nervous system monitors and coordinates internal organ function and responds to changes in the external environment. This system can be divided into two parts: the central nervous system and the peripheral nervous system. Let 's take a look at the central nervous system.
Central Nervous System
The central nervous system (CNS) is the processing center for the nervous system. It receives information from and sends information to the peripheral nervous system. The two main organs of the CNS are the brain and spinal cord. The brain processes …show more content…

The parietal lobes are located behind the frontal lobes and in front of theoccipital lobes. They process sensory information such as temperature, pain,taste, and touch. In addition, the processing includes information about numbers, attentiveness to the position of one 's body parts, the space around one 's body, and one 's relationship to this space.
The temporal lobes are located on each side of the brain. They process memory and auditory (hearing) information and speech and language functions.
The occipital lobes are located at the back of the brain. They receive and process visual information.
The cortex, also called gray matter, is the most external layer of the brain and predominantly contains neuronal bodies (the part of the neurons where the DNA-containing cell nucleus is located). The gray matter participates actively in the storage and processing of information. An isolated clump of nerve cell bodies in the gray matter is termed a nucleus (to be differentiated from a cell nucleus). The cells in the gray matter extend their projections, called axons, to other areas of the brain.
Fibers that leave the cortex to conduct impulses toward other areas are termedefferent fibers, and fibers that approach the cortex from other areas of the nervous system are termed afferent (nerves or pathways). Fibers that go from the motor cortex to the brainstem (for example, the pons) or the spinal

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