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Topics related to "sympathetic nervous system"

sympathetic nervous system
sympathetic nervous system That part of the autonomic nervous system which generally acts to stimulate the body to cope with stress, such as increasing the rate of heart beat. Nerves of the sympathetic nervous system tend to form ganglia (ganglion) beside the vertebrae, preganglionic fibres leading ... Read more
nervous system
nervous system network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system. Invertebrate animals show varying degrees of complexity in their nervous system... Read more
autonomic nervous system
autonomic nervous system The part of the nervous system which controls involuntary activities such as homoeostasis. The autonomic nervous system is regulated by the hypothalamus and comprises two antagonistic parts, the parasympathetic and sympathetic nervous systems. See also CENTRAL NERVOUS SYSTEM... Read more
Peripheral Nervous System
Peripheral Nervous System The peripheral nervous system (PNS) refers to all the neurons (and their supporting cells, or glia) of the body outside the brain and spinal cord (central nervous system [CNS]). The brain is the organ that decides how a person responds to what happens in the surrounding ... Read more
parasympathetic nervous system
parasympathetic nervous system That part of the autonomic nervous system which generally causes bodily functions to become appropriate for calm conditions, for instance by slowing down the heart rate and promoting digestion. Nerves of the parasympathetic nervous system tend to form ganglia (ganglion... Read more
Central Nervous System
Central Nervous System The central nervous system (CNS) consists of a brain and spinal (nerve) cord. Most invertebrates and all vertebrates have sensory and motor neurons that are linked by way of a CNS. Most invertebrates have a CNS that is organized into a brain and a longitudinal nerve cord th... Read more
endocrine system
endocrine system , body control system composed of a group of glands that maintain a stable internal environment by producing chemical regulatory substances called hormones . The endocrine system includes the pituitary gland , thyroid gland , parathyroid glands , adrenal gland , pancreas , ov... Read more
reproductive system
reproductive system in animals, the anatomical organs concerned with production of offspring. In humans and other mammals the female reproductive system produces the female reproductive cells (the eggs, or ova) and contains an organ in which development of the fetus takes place; the male reproducti... Read more
norepinephrine
norepinephrine , a neurotransmitter in the catecholamine family that mediates chemical communication in the sympathetic nervous system, a branch of the autonomic nervous system. Like other neurotransmitters, it is released at synaptic nerve endings to transmit the signal from a nerve cell to oth... Read more
beta-blocker
beta-blocker or beta-adrenergic blocking agent , drug that reduces the symptoms connected with hypertension , cardiac arrhythmias , angina pectoris , migraine headaches, and other disorders related to the sympathetic nervous system . Beta-blockers also are sometimes given after heart attac... Read more

Encyclopedia entries related to "sympathetic nervous system"

sympathetic nervous system
Book article from: The Columbia Encyclopedia, Sixth Edition sympathetic nervous system see nervous system .
nervous system
Book article from: The Columbia Encyclopedia, Sixth Edition ...rudimentary nervous system. Invertebrate...in their nervous systems, but it...peripheral nervous systems. The central nervous system consists...central nervous system as part of...subsystems: the sympathetic and parasympathetic nervous ...
central nervous system
Book article from: The Oxford Companion to the Body central nervous system The central nervous system (CNS) consists...part of the autonomic nervous system ) that innervate...Evolutionarily, the central nervous system is derived from...heart. These are the sympathetic fibres and are also...
autonomic nervous system
Book article from: The Oxford Companion to the Body ...has two components, sympathetic and parasympathetic...relation to the central nervous system Anatomically...constitute the central nervous system (CNS) and the...column are the peripheral nervous system . But, on functional...grounds, the nervous system is also ...
Sympathectomy
Encyclopedia entry from: Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers ...that destroys nerves in the sympathetic nervous system. The procedure is performed...cord. Purpose The autonomic nervous system controls such involuntary body...sympathetic and the parasympathetic nervous systems. The sympathetic nervous system...
Horner's Syndrome
Encyclopedia entry from: Gale Encyclopedia of Cancer ...interruption of the sympathetic nerve to the eye. There...major divisions of the nervous system: the voluntary...involuntary (autonomic nervous system) itself has two divisions...and parasympathetic nervous systems. Under normal conditions...
Male orgasmic disorder
Encyclopedia entry from: Gale Encyclopedia of Mental Disorders ...interplay between the two major nervous systems, the sympathetic and the parasympathetic. In general, the sympathetic nervous system prompts action whereas the...which the parasympathetic nervous system plays a key role...
neurotransmitters
Book article from: The Oxford Companion to the Body ...the transmitter in the sympathetic nervous system, and in the...transmitter in the sympathetic nervous system. These discoveries...ganglia of the autonomic nervous system, and at the ends of...neuronally-stimulated systems. To meet the second...
norepinephrine
Book article from: The Columbia Encyclopedia, Sixth Edition ...mediates chemical communication in the sympathetic nervous system, a branch of the autonomic nervous system. Like other neurotransmitters...sympathetic activation. The sympathetic nervous system functions in response to short...
fainting
Book article from: The Oxford Companion to the Body ...does not cause damage to the nervous system, unless there is injury from...when rising after sleep. The sympathetic nervous system normally responds to gravitational...abnormal activity of the autonomic nervous system ( neurally-mediated...

Dictionary entries related to "sympathetic nervous system"

sympathetic nervous system
Book article from: A Dictionary of Zoology sympathetic nervous system That part of the autonomic nervous system which generally acts to stimulate the body to cope...increasing the rate of heart beat. Nerves of the sympathetic nervous system tend to form ganglia ( ganglion ) beside the vertebrae...
sympathetic tone
Book article from: A Dictionary of Biology sympathetic tone The condition of a muscle when the tone is maintained predominantly by impulses from the sympathetic nervous system .
parasympathetic nervous system
Book article from: A Dictionary of Biology parasympathetic nervous system Part of the autonomic nervous system . Its nerve endings release acetylcholine as...neurotransmitter and its actions tend to antagonize those of the sympathetic nervous system . For example, the parasympathetic nervous...
autonomic nervous system
Book article from: A Dictionary of Zoology ...such as homoeostasis . The autonomic nervous system is regulated by the hypothalamus and comprises...antagonistic parts, the parasympathetic and sympathetic nervous systems . See also CENTRAL NERVOUS SYSTEM ; PERIPHERAL NERVOUS SYSTEM .
sympathetic
Book article from: The Oxford Pocket Dictionary of Current English ...expressing sympathy: he was sympathetic toward staff with family...Audrey develops as a sympathetic character. ∎...buildings that were sympathetic to their surroundings...part of the autonomic nervous system consisting of nerves...
Remak, Robert
Dictionary entry from: Complete Dictionary of Scientific Biography ...marrowless nerve fibers in the sympathetic nervous system (which he called “...be independent of the central nervous system. He further demonstrated...the sympathetic — nervous system. He published articles...
Orbeli, Leon Abgarovich
Dictionary entry from: Complete Dictionary of Scientific Biography ...subjects: physiology of the higher nervous activity and the sense organs...physiology of the autonomic nervous system, the rapid development of which...adaptive-trophic role of the sympathetic nervous system in the organism (the...
tachycardia
Book article from: A Dictionary of Biology ...the opposing actions of the sympathetic nervous system, which accelerates the heartbeat; and the parasympathetic nervous system, which slows it down...exercise there is an increase in sympathetic activity and tachycardia occurs...
alarm response
Book article from: A Dictionary of Biology ...from the adrenal glands, triggered by increased sympathetic nervous activity. These hormones enhance the effects of the sympathetic nervous system (e.g. by increasing heart and breathing rates...
ramus communicans
Book article from: A Dictionary of Biology ...structure containing nerve fibres that runs from a spinal nerve to a ganglion of the sympathetic nervous system (see autonomic nervous system ). The sympathetic ganglia form a series down each side of the vertebral column; each is connected to...

Related newspaper, magazine, and trade journal articles from HighBeam Research

Increased lung uptake of iodine-123-MIBG in diabetics with sympathetic nervous dysfunction
Magazine article from: The Journal of Nuclear Medicine; 2/1/1998; ; 700+ words ; ...requiring transport system used for the extraction...However, the influence of sympathetic nervous activity on the kinetics...systemic sympathetic nervous system decreases in...patients with sympathetic nervous dysfunction as observed...
Physiological fluctuation of the human left ventricle sympathetic nervous system assessed by iodine-123-MIBG
Magazine article from: The Journal of Nuclear Medicine; 10/1/1998; ; 700+ words ; It has been proposed that sympathetic nervous system pathophysiology is involved in...physiological changes in the sympathetic nervous system in the human left ventricle...gender influence the sympathetic nervous function of the left ventricle...
Cardiac sympathetic nervous system in early essential hypertension assessed by 123I-MIBG
Magazine article from: The Journal of Nuclear Medicine; 1/1/1999; ; 700+ words ; ...the sympathetic nervous system in the pathogenesis of...cardiac sympathetic nerve system remains obscure. According...the sympathetic nervous system in the development of...to easily evaluate the sympathetic activity and innervation...investigate cardiac ...
Whole-Body PET/CT with ^sup 11^C-Meta-Hydroxyephedrine in Tumors of the Sympathetic Nervous System: Feasibility Study and Comparison with ^sup 123^I-MIBG SPECT/CT
Magazine article from: The Journal of Nuclear Medicine; 10/1/2006; ; 700+ words ; ...to visualize the sympathetic nervous system with PET. Initial...deriving from the sympathetic nervous system and other tumor...image tumors of the sympathetic nervous system. With regard to...the sympathetic nervous system using PET...
Sympathetic nervous system research developments.(Brief article)(Book review)
Magazine article from: SciTech Book News; 9/1/2008; 553 words ; 9781600218811 Sympathetic nervous system research developments. Ed. by Mitsuyasu Kaneko...consisting of recent research into the sympathetic nervous system, which is a branch of the autonomic nervous system that is always active at the basal level...
Washington Inventor Develops Sympathetic Nervous System Determination Method
News Wire article from: US Fed News Service, Including US State News; 12/9/2006; 498 words ; ...whether to provide an inhibitor of sympathetic nervous system activity to a human being suffering...provide an inhibitor of sympathetic nervous system activity to a human being...there is excessive sympathetic nervous system activity in the heart...
Central and sympathetic nervous systems play role in pressor effect of L-NAME.
Newspaper article from: Heart Disease Weekly; 3/9/2003; 628 words ; ...suggest that the central and sympathetic nervous systems may be also involved...the central and sympathetic nervous systems play important roles in the...important only when the sympathetic nervous system has been suppressed." Huang...
MedSearch Technologies Receives US Patent On Its Sympathetic Nervous System Monitor.
Business Wire; 11/30/2000; 700+ words ; ...that it has received a US patent on its sympathetic nervous system monitor. MedSearch's sympathetic nervous system monitor measures the neurological...pain. The activity of the sympathetic nervous system is displayed on a screen for the...
Sympathetic nervous system affects the development of the immune system.
Newspaper article from: Immunotherapy Weekly; 4/2/2003; 655 words ; ...amp; NewsRx.net) -- The sympathetic nervous system affects the development of the...suggested that the sympathetic nervous system communicates with lymphocytes...stage. "To clarify whether the nervous system is involved in the development...
Tai chi decreases sympathetic nervous activity.(News from The Journal of Chinese Medicine)(Brief article)(Clinical report)
Magazine article from: The Journal of Chinese Medicine; 6/1/2007; 586 words ; ...a decrease in activity of the sympathetic nervous system, to levels that are not achieved...significantly decrease sympathetic nervous system activity (measured from...acutely decreases sympathetic nervous system activity in older adults...