1. Why did Allen’s heart rate and blood pressure fall in this time of emergency (i.e. at a time when you’d expect just the opposite homeostatic response)? Pg. 969 This occurred because Allen’s spinal cord has decreased perfusion due to damage‚ and a broken vertebral bone. Also‚ there has been a disruptions of the sympathetic fibers of his autonomic nervous system therefore it can no longer stimulate the heart. Allen likely has spinal shock. 2. Upon admission to the hospital‚ Allen’s breathing
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Exercise 1 (20 marks) 1. What happens to the blood pressure and heart rate when the arterial resistance is increased? When arterial resistance is increased‚ the blood pressure increases and heart rate decreases. For instance‚ when arterial resistance increased to 150%‚ systolic blood pressure increases to 132.8mmHg‚ diastolic pressure increases to 82.1 mmHg‚ and heart rate decreased to 51.8/min. 2. What might give rise to condition with increased
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hold responsible for it. Among these possible factors are the current account imbalances and the entailed capital flows‚ which have led to many policy debates lately. As stressed by Fed’s Chairman‚ Ben Bernanke (2009)‚ inequalities and bankers misbehaviours in the US would not be the main cause of the crisis. He argues that the Asian Thrift led to it and one should take a more global approach and look at “the global imbalances in trade and capital flows” in order to understand the turmoil. But this view
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affecting liquidity • Global imbalances • Loose monetary policy by the Fed Source: „The Current Financial Crisis: Causes and Policy Issues“ by Adrian Blundell-Wignall‚ Paul Atkinson and Se Hoon Lee Introduction 1 2 Global macro policies affecting liquidity • Global imbalances • Loose monetary policy by the Fed Source: „The Current Financial Crisis: Causes and Policy Issues“ by Adrian Blundell-Wignall‚ Paul Atkinson and Se Hoon Lee Global imbalances Newly industrialized
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Mammary glands: feature for which mammals are named-produce milk to nourish the young. Having hair‚ ability to nourish their young with milk‚ all breathe air‚ have four chambered hearts‚ and are endotherms. The first true mammals appeared during the late Triassic period‚ about 220 million years ago. Mammals are descended from ancient reptiles. * * Form and Function in Mammals * * Body Temperature Control * High metabolic rate‚ helps generate body heat. External body hair
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there is an increase in the cardiac output; the heart may be increased as well. The same rule will apply if there is a decline the cardiac output; there will always be a correlation that varies and relates with stroke volume and the heart rate. Homeostatic is the reason temporary stressors can influence the heart rate. Factors can be chemically‚ physically and neural impacting. Resistance also impact blood pressure due to the blood viscosity‚ diameter‚ and vessel length. If blood pressure rises the
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BALANCE OF PAYMENTS Contents 1 Composition of the balance of payments sheet 1.1 Variations in the use of term "balance of payments" 1.2 The IMF definition 2 Imbalances 2.1 Causes of BOP imbalances 2.2 Reserve asset 2.3 Balance of payments crisis 3 Balancing mechanisms 3.1 Rebalancing by changing the exchange rate 3.2 Rebalancing by adjusting internal prices and demand 3.3 Rules based rebalancing mechanisms 4 History of balance of payments issues 4.1 Pre-1820: mercantilism 4.2 1820–1914:
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Health and Sleep With the rapid development of modern technology‚ people care more about material needs than spiritual. Therefore‚ health becomes the most important factor of our lives‚ and sleep plays a very important role in everyone’s health. People should lead a healthy lifestyle‚ especially‚ have a great sleep. Sleep is a naturally recurring state characterized by reduced or absent consciousness‚ relatively suspended sensory activity‚ and inactivity of nearly all voluntary muscles.
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She is using a positive feedback mechanism. Which concept is the defining feature of the discipline of physiology? dimorphism descent with modification differentiation evolution homeostasis Describing a physiological variable as "homeostatic‚" means that it has varied from the normal value‚ and will remain constant at the new value. is in a state of dynamic constancy that is regulated to remain near a stable set point value. is in an equilibrium state that requires no energy input
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References: Jenkins‚ G.‚ Kemnitz C.‚Tortora G. Anatomy and Physiology: From Science to Life. Hoboken‚ NJ: John Wiley & Sons‚ 2010. 619. Print. Celli‚ B. (2009‚ October 23). Homeostatic Regulation of Blood Pressure. Retrieved January 23‚ 2013‚ from http://www.ehow.com/about_5565094_homeostatic-regulation-blood-pressure.html Your Aging Heart: What’s Happening?. (n.d.). Retrieved January 24‚ 2013 from http://www.thirdage.com/heart-health/your-aging-heart-whats-happening
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