Central Nervous System ( Cns ) And Peripheral Nervous Systems

831 Words Jul 22nd, 2016 4 Pages
The nervous system in the body is divided into Central Nervous System (CNS) and Peripheral Nervous System (PNS). Central nervous system controls all important nerves inside the body enable the body to do its daily tasks. Peripheral nervous system is the system that control on the outside the brain and spinal cord. Both systems are requiring in the body for different functions.
The central nervous system consists of the nerves in brain and spinal cord. The brain is responsible for organize and coordinate the information. Consciously and unconsciously, the brain has many functions such as to think, feel and homeostasis regulation in the body. It receives sensory inputs from the spinal cord and transfer out as the motor outputs. The spinal cord manages sensory information from the PNS to the brain and it also oversees the motor information from the brain to different effectors. Both brain and spinal cord contain white matter, gray matter, meninges, and cerebrospinal fluid.
The brain consists of forebrain, midbrain, and hindbrain. Forebrain made up of a pair of large cerebral hemispheres also known as the telecephalon and a set of structures sit deep in the cerebellum called diencephalon. Diencephalon includes the thalamus, lateral geniculate nucleus (LGN), hypothalamus, and posterior lobe of the pituitary. Thalamus allows all the sensory inputs (except for olfactory nerve) to go through to the somatic sensory regions of the cerebral cortex. LGN allows the signals to go from…

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