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The Cardiovascular System: Blood Vessels And Hemodynamics - Chapter questions - Problem 16F
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Blood loss may cause the circulatory system to respond in two ways. First arterioles will constrict with resultant increase in systemic vascular resistance(SVR). In addition, veins will also constrict and this will decrease venous return. These two responses will tend to boost the falling blood pressure to near normal levels. Sympathetic stimulation will not only cause vascular smooth muscle contraction but it will induce secretion of catecholamines from the adrenal medulla. The increase in SVR will decrease blood flow to the tissues and cause impaired tissue perfusion, which will deprives cells of adequate supplies oxygen and nutrients.
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Question Text | The Cardiovascular System: Blood Vessels And Hemodynamics - Chapter questions - Problem 16F |
Answer Type | Text solution:1 |