What Does the Sympathetic Nervous System Do? Your sympathetic nervous system is responsible for your “fight or flight” response. It’s activated when your brain senses that you’re in a stressful situation. The sympathetic nervous system function includes: Dilating (enlarging) your pupils, the ...
Background: To determine whether elevations of plasma norepinephrine (NE) in major depression represent increased sympathetic nervous system (SNS) activity and to assess the effects of desipramine hydrochloride on sympathetic function. Methods: SNS activity was assessed in depressed patients and controls...
To elucidate the pathophysiology of elevated blood pressure in hypercalcemic patients, we studied the plasma concentration of catecholamines and their major metabolites (as an index of sympathetic function) and the blood pressure response to norepinephrine infusion (vascular reactivity) in patients with ...
This review focuses on studies of the sympathetic nervous system in fibromyalgia (FM). First, a brief review of the sympathetic system, and its relationship to the human stress response, is outlined. Then various studies of functional assessment of sympathetic function in FM are highlighted. Certai...
Can the sympathetic and parasympathetic nervous systems function simultaneously? Why or why not? Why is it efficient for the body to have two different autonomic systems? What would be the implications of having only one autonomic system, i.e., a hybrid of the sympathetic and parasympathetic s...
3. At compensation stage and broken compensation stage, neuroendocrine derangement and sympathetic nervous system activation. 先天性心脏病的代偿期与失代偿期存在着不同程度的神经内分泌的紊乱和交感神经系统的激活。 4. sympathetic的解释 4. I am referring to sympathetic contacts and naturally do not includ...
沪江词库精选sympathetic是什么意思、英语单词推荐、用法及解释、词汇辨析 英音 [simpə'θetik] ; 美音 [simpə'θetik] ; 副词1.同情的;有同情心的;表示同情的 2.赞同的,支持的3.让人喜欢的,招人喜爱的 词形变化 副词 sympathetically 英语解释 of or relating to the sympathetic nervous system ...
The Impact of Myasthenia Gravis on Mood, Cognitive Function, and Quality of Life In the previous edition of this chapter we noted that for the most part clinical and basic science research in the field of myasthenia gravis (MG) had largely focused on understanding the etiology, clinical sequelae...
sym·pa·thet·ic nervous system (sĭm′pə-thĕt′ĭk) The part of the autonomic nervous system that tends to act in opposition to the parasympathetic nervous system, as by speeding up the heart and contracting the blood vessels. It also regulates the function of glands, particularly...
1., the sympathetic nervous system of the circulatory organ can stimulate the heart activity, accelerate the heartbeat frequency and accelerate the heartbeat strength. To the blood vessel, it mainly promotes the contraction of the arteriole, thus increasing the peripheral resistance of the blood flow...