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Topic: Central nervous system


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  nervous system. The Columbia Encyclopedia, Sixth Edition. 2001-07
Invertebrate animals show varying degrees of complexity in their nervous systems, but it is in the vertebrate animals (phylum Chordata, subphylum Vertebrata) that the system reaches its greatest complexity.
The central nervous system consists of the brain and spinal cord.
All of the fibers of the autonomic nervous system are motor channels, and their impulses arise from the nerve tissue itself, so that the organs they innervate perform more or less involuntarily and do not require stimulation to function.
www.bartleby.com /65/ne/nervouss.html   (1463 words)

  
  central nervous system (cns)   (Site not responding. Last check: )
Expression of the oligodendrocyte-myelin glycoprotein by neurons in the mouse central nervous system.
Neurodegeneration in the central nervous system of apoE-deficient mice.
Myelin-associated glycoprotein in the central and peripheral nervous system of quaking mice.
www.arclab.org /node_pages/265.html   (8598 words)

  
  Central Nervous System Norepinephrine Metabolism in Hypertension
Central monoaminergic systems are recognized as being of importance in the regulation of cardiovascular reflexes [25].
Central nervous system norepinephrine turnover in cortical brain regions is not elevated in hypertensive patients [7].
agonist that suppresses sympathetic nervous system activity and, although it is known to inhibit the firing rate of locus ceruleus neurons [5], its principal antihypertensive effect is believed to be mediated via its action at the level of the rostral ventrolateral medulla [49].
www.current-reports.com /article.cfm?PubID=HR02-3-2-04&Type=Article&KeyWords=   (4164 words)

  
  Central nervous system - Wikipedia, the free encyclopedia
The central nervous system (CNS) represents the largest part of the nervous system.
Together with the peripheral nervous system, it has a fundamental role in the control of behavior.
Since the strong theoretical influence of cybernetics in the fifties, the CNS is conceived as a system devoted to information processing, where an appropriate motor output is computed as a response to a sensory input.
en.wikipedia.org /wiki/Central_nervous_system   (503 words)

  
 Glossary
Part of the central nervous system that houses the nerve centers of the head as well as the centers for respiration and heart control and through which all impulses to and from the periphery of the brain pass.
Includes all of the neural structures in the body: the central nervous system consists of the brain, spinal cord, and optic nerves; the peripheral nervous system consists of the nerve roots, nerve plexi, and nerves throughout the body.
Involuntary response of the nervous system to a stimulus, such as the stretch reflex, which is elicited by tapping a tendon with a reflex hammer, resulting in a contraction.
www.mslifelines.com /global/glossary.jsp   (6016 words)

  
 Central nervous system - Conservapedia
The central nervous system is covered by three tissue layers called the meninges.
Tissue surrounding the ventrical system is the primary producer of cerebrospinal fluid which surrounds the CNS providing a medium for communication between neurons and as a cushion in case of trauma.
The nervous tissue is formed from a region of the ectoderm called the neural plate.
www.conservapedia.com /Central_nervous_system   (1372 words)

  
 Central nervous system injury treatment with opiate-receptor antagonist - Patent 5025018
The present invention involves methods of inducing opiate-receptor antagonistic activity in a patient suffering from ischemic or traumatic central nervous system injury by administering to said patient an effective amount of an opiate-receptor antagonist having enhanced activity at the kappa-opiate receptor suitable to permit the induction of opiate-receptor antogonistic activity.
A method of inducing kappa-opiate-receptor antagonistic activity in a patient suffering from ischemic or traumatic central nervous system injury which comprises administering to said patient an effective amount of a kappa-opiate-receptor antagonist suitable to permit the induction of kappa-opiate receptor antagonistic activity.
In order to simplify and enhance the safety of central nervous system protocols, opiate receptor antagonists which exhibit a high degree of specificity for or enhanced activity at a specific opiate receptor are being sought.
www.freepatentsonline.com /5025018.html   (1280 words)

  
 Chapter 3: The nervous system
The nervous system comprises the central nervous system, consisting of the brain and spinal cord, and the peripheral nervous system, consisting of the cranial, spinal, and peripheral nerves, together with their motor and sensory endings.
The central nervous system is composed of millions of nerve and glial cells, together with blood vessels and a little connective tissue.
By its role in central integrating mechanisms, the autonomic system is involved in behavioral and neuroendocrinological mechanisms, and in the processes whereby the body keeps its internal environment constant, that is, maintains temperature, fluid balance, and ionic composition of the blood.
www.dartmouth.edu /~humananatomy/part_1/chapter_3.html   (3304 words)

  
 Neuroscience For Kids - Explore the nervous system
The peripheral nervous system is divided into two major parts: the somatic nervous system and the autonomic nervous system.
The autonomic nervous system is divided into three parts: the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system.
The enteric nervous system is a meshwork of nerve fibers that innervate the viscera (gastrointestinal tract, pancreas, gall bladder).
faculty.washington.edu /chudler/nsdivide.html   (1209 words)

  
 Glossary - Nervous System Diseases Health Guide
central nervous system - the brain and the spinal cord.
extrapyramidal system - system consisting of nerve cells, nerve tracts and pathways that connects the cerebral cortex, basal ganglia, thalamus, cerebellum, reticular formation, and spinal neurons that is concerned with the regulation of reflex movements such as balance and walking.
gray matter - the darker-colored tissues of the central nervous system; in the brain, the gray matter includes the cerebral cortex, the thalamus, the basal ganglia, and the outer layers of the cerebellum.
www.umm.edu /nervous/glossary.htm   (1771 words)

  
 Reference.com/Encyclopedia/Central nervous system
The central nervous system along with the peripheral nervous system comprise a primary division of controls that command all physical activities of a vertebrate.
Neurons of the central nervous system affect consciousness and mental activity while spinal extensions of central nervous system neuron pathways affect skeletal muscles and organs in the body.
The peripheral system is composed of the somatic nervous system and the autonomic nervous system, the latter being further divided as the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system.
www.reference.com /browse/wiki/Central_nervous_system   (182 words)

  
 [No title]   (Site not responding. Last check: )
nervous system is divided into two parts - the central nervous system and the...
central nervous system (cns) involvement in fibromyalgia and chronic fatigue syndrome appears to be at least partially responsible for some patients...
systemic lupus and the nervous system - lupus foundation of...
www.fibromyalgia-syndrome-relief.com /fibromyalgia-central-nervous-system.html   (503 words)

  
 Central Nervous System for Biochemistry @ LCHS
The human nervous system is divided into the central nervous system (CNS) - the brain and the spinal cord - and the peripheral nervous system (PNS) - the somatic and autonomic systems.
The somatic system is largely composed of sensory receptors and sensory neurons and the voluntary motor nerves that move skeletal muscle, while the autonomic system is motor and involuntary, dedicated mainly to homeostasis.
The central nervous system arises in the embryo from the neural tube.
www.lcusd.net /lchs/mewoldsen/CNS.htm   (1321 words)

  
 KSUCVM - CS 712 - Central Nervous System
Bovine spongiform encephalopathy (BSE) is a transmissible, slowly progressive disease of the central nervous system which is postulated to be the bovine equivalent of the disease scrapie in sheep.
Nervous disease is associated with enteric infections with Eimeria bovis and Eimeria zurnii.
The incidence of nervous signs is around 0.3% of calves affected with the intestinal form of the disease while up to 21% of the herd outbreaks of intestinal coccidiosis have nervous signs.
www.vet.ksu.edu /depts/fahm/fam/cns/cns.htm   (9393 words)

  
 Central nervous system stimulants Encyclopedia of Medicine - Find Articles
Central nervous system stimulants, such as amphetamines and methylphenidate (Ritalin), are used to treat attention-deficit hyperactivity disorder (ADHD), a condition in which people have unusually high activity levels and short attention spans.
Central nervous system stimulants should not be used to increase alertness or to substitute for sleep.
The recommended dosage depends on the type of central nervous system stimulant and the condition for which it is being prescribed.
findarticles.com /p/articles/mi_g2601/is_0002/ai_2601000281   (969 words)

  
 BrainConnection.com - Central Nervous System Overview
To make matters worse, researchers have studied the nervous system from several points of view, and often they are inclined to create names for structures that reflect their particular point of view.
As its name implies, the central nervous system is the center to which the other two systems feed their sensory information and from which they derive their motor output.
The two main structures of the central nervous system are the brain and the spinal cord.
www.brainconnection.com /topics/?main=anat/cns   (799 words)

  
 Central nervous system Summary
The central nervous system is comprised of the brain and the spinal cord.
Both the brain and spinal cord components of the central nervous system contain bundles of cell bodies (out of which axons grow) and branched regions of nerve cells that are called dendrites.
The central nervous system (CNS), (i.e., the spinal cord, and the cortical and subcortical areas of the brain), processes different kinds of sensory information through highly organized neuronal structures that function as specific information-processing areas in the brain in a modular fashion.
www.bookrags.com /Central_nervous_system   (2198 words)

  
 Central nervous system stimulants Encyclopedia of Medicine - Find Articles
Central nervous system stimulants, such as amphetamines and methylphenidate (Ritalin), are used to treat attention-deficit hyperactivity disorder (ADHD), a condition in which people have unusually high activity levels and short attention spans.
Central nervous system stimulants should not be used to increase alertness or to substitute for sleep.
The recommended dosage depends on the type of central nervous system stimulant and the condition for which it is being prescribed.
www.findarticles.com /p/articles/mi_g2601/is_0002/ai_2601000281   (969 words)

  
 Central Nervous System Injury - Online Lawyer Source
A central nervous system injury is the leading cause of morbidity and mortality for young people throughout the U.S. and the rest of the world.
When a central nervous system injury has been sustained, immediate management of patients must be implemented in order to prevent secondary injuries.
A central nervous system injury to the spinal cord, which contains the nerves that carry messages between the brain and the body, can mean damage to the cells within the spinal cord or when the tracts of nerves that run up and down the spinal cord are severed.
www.onlinelawyersource.com /medical_malpractice/cns.html   (454 words)

  
 Central Nervous System Infection in Congenital Syphilis - The Body
Most of the infants (16 of 17) with central nervous system infection could be identified by abnormalities on the physical examination, radiographic studies, or conventional tests, such as the cerebrospinal fluid white-cell count and the VDRL test.
According to the researchers, the results show that central nervous system involvement is common in infants infected with Treponema pallidum.
Although identifying central nervous system infections has been difficult in infants with congenital syphilis, such testing is important because the result affects the treatment strategy.
www.thebody.com /cdc/news_updates_archive/jun13_02/syphilis.html   (590 words)

  
 central nervous system - Encyclopedia.com
Histopathological changes in the central nervous system of moose (Alces alces) in the ivanovo region of Russia.
Conditions of the nervous system: recommended core educational guidelines for family practice residents.
Herpetic infection, with especial reference to involvement of the nervous system.
www.encyclopedia.com /doc/1E1-X-centrns.html   (377 words)

  
 THE NERVOUS SYSTEM
This unit of the nervous system is similar to an output device (printer, monitor).
Thus, central nervous system in bilateral animals consists of the brain and nerve cords.
All information from the periphery nervous system (PNS), motor functions and sensory activities are received, processed, analyzed and relayed or commands are issued for their respective responses.
www.gpc.edu /~decms/ibim/nervoussystem2.htm   (5281 words)

  
 Central Nervous System Vasculitis Information
Central Nervous System (CNS) Vasculitis has been called by other names including isolated angiitis of the CNS (“IACNS”), emphasizing the confinement of the disease process to the brain and the spinal cord.
Primary angiitis of the central nervous system is a rare disease characterized by vasculitis of small and medium arteries in the brain and spinal cord.
In the absence of positive results on biopsy specimen analysis, the diagnosis of primary angiitis of the central nervous system should be doubted.
vasculitis.med.jhu.edu /typesof/cns.html   (1908 words)

  
 Central Nervous System | Neurosciences | Wake Forest University Baptist Medical Center
As the most complex system, the central nervous system serves as the body control center and communications electrical-chemical wiring network.
central nervous system integrates countless bits of information and generates appropriate reactions by sending electrochemical impulses through nerves to effector organs such as muscles and glands.
The brain and spinal cord are the central nervous system (CNS); the connecting nerve processes to effectors and receptors serve as the peripheral nervous system (PNS).
www1.wfubmc.edu /neuro/central-nervous-system.htm   (232 words)

  
 Chapter 1: The Nervous System   (Site not responding. Last check: )
Includes all of the neural structures in the body: the central nervous system consists of the brain, spinal cord, and optic nerves; the peripheral nervous system consists of the nerve roots, nerve plexi, and nerves throughout the body.
The nervous system is just one of the very important functions we take for granted.
The overall nervous system depends on all of the nerve cells working together to form a communications network.
www.mswatch.ca /education/classes/Chapter.aspx?SectionId=02dd40f8-8ae5-481d-96e0-2612514ea97c   (892 words)

  
 Central nervous system - Trust
The central nervous system (CNS) represents the largest part of the nervous system, including the brain and the spinal cord.
Together with the peripheral nervous system, it has a fundamental role in the control of behavior.
Since the strong theoretical influence of cybernetics in the fifties, the CNS is conceived as a system devoted to information processing, where an appropriate motor output is computed as a response to a sensory input.
enwiki-trust.cse.ucsc.edu /index.php/Central_nervous_system   (589 words)

  
 Central Nervous System Lymphoma -- Lister et al. 2002 (1): 283 -- Hematology
Systemic chemotherapy alone for patients with non-acquired immunodeficiency syndrome-related central nervous system lymphoma: a pilot study of the BOMES protocol.
Lymphosarcoma with involvement of the central nervous system.
Central nervous system complications of leukemic conversion of the lymphomas.
www.asheducationbook.org /cgi/content/full/2002/1/283   (6871 words)

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