at nearly all times‚ under a demand of one sort or another. But Stress is more than that‚ as it is also a physiological process. As discussed in our reading the process of stress is not event specific‚ but rather a generalized response by our nervous system to certain chemicals produced when we are activated. That activation can be a Bear charging us‚ or a paper that is due‚ or
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Negative feedback as a form of regulation Feedback control systems This occurs when a n important variable sometimes known as a key variable e.g. pH of blood and tissue fluid‚ deviates from the accepted range from the accepted range or limits which then triggers responses that return the variable to within the ‘normal range’. Deviation produces a negative response to counteract the deviation. An example of a negative feedback system within the body is the liver when blood glucose levels fall
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prepare for emergencies? The answer lies in the Sympathetic Nervous System (SNS). It is the branch of the Autonomic Nervous System (ANS) that controls the body’s reaction to physical and emotional stressors. The sympathetic branch activates the glands and organs that defend the body against attack. It is called the fight-or-flight response. This is a primitive response designed to protect from danger. When danger is perceived‚ the sympathetic nervous system responds immediately to prepare a person to
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increases activity of GI tract effects are short-lived provides more extensive innervation of G.I. Tract craniosacral division functions at rest sympathetic effects are more general can produce widespread sweating has greater influence during physical activity inhibits heart rate but stimulates contraction of urinary bladder stimulation of this system often activates many effectors at the same time release of epinephrine and norepinephrine thoracolumbar division fight-or-flight response provides
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designed for survival and is regulated by both the neural and endocrine (hormonal) systems. Fundamentally‚ both systems are communication systems that receive sensory information from various sources (eyes‚ ears‚ skin‚ blood‚ etc.) and transmit appropriate responses to specific targets once information has been processed to re-establish balance. The nervous system is a rapid-acting‚ but short-lived communication system that functions by transmitting nerve impulses – it reacts very quickly to stimuli
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the rate of contraction. Autonomic nervous system The heart is controlled by the autonomic nervous system which is two branches called the sympathetic nerves system and the parasympathetic nervous system. The sympathetic nervous system is active when the body is undergoing muscular work such when we are doing exercise‚ like when running or jumping. It causes the increase in the heart rate and strengths the heartbeat. The parasympathetic nervous system calms the heart down and is active when
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body cell contents and all metabolic processes taking place inside the body. This process is essential to the survival of a person and to our species as a whole. The liver‚ the kidneys‚ and the brain (hypothalamus‚ the autonomic nervous system and the endocrine system) help maintain homeostasis. An inability to maintain homeostasis may lead to death or a disease‚ for example diseases that can occur due to the result of a homeostatic imbalance include diabetes‚ dehydration‚ hypoglycaemia‚ gout and
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behavior that the reader is likely to find socially and morally unacceptable. Yet one might argue that Bigger merely responded to the conditions in which he lived and which shaped him. If one advocates such a response‚ Bigger might be viewed as a sympathetic character. My position‚ with respect to this dilemma‚ is that Bigger has a way to control his actions and the actions he chose come with major consequences. Although Bigger had to conceal his slave mentality‚ Bigger should have rebelled against
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1. Kent and Jebreel both ask Danielle out on a date. Kent is very attractive and a lot of fun to be with‚ but he’s also employed. Jebreel is older than Kent‚ has a secure job‚ and owns his own home; however‚ Jebreel is quite unattractive and not very much fun. Daniel chooses to go out with Jebreel instead of Kent. The ______ theory of motivation would best predict Daniel’s choice. Concept tested: Theory’s of motivation Page 399: Instinct theory is motivation based off of inherent automatic
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individual’s homeostasis. autonomic nervous system The branch of the peripheral nervous system that‚ largely without conscious thought‚ controls basic body processes; consists of the sympathetic and parasympathetic divisions. parasympathetic division A division of the autonomic system that moderates the excitatory effect of the sympathetic division‚ slowing metabolism and restoring energy supplies. sympathetic division A division of the autonomic nervous system that reacts to danger or other challenges
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