Zach, a motorcycle rider, has his brakes suddenly fail; he rounds a corner and slams into the back of an SUV. His helmet keeps him alive, but he suffers a lacerated femoral artery from the broken glass; fortunately, the doctor is able to save him. Nevertheless, the rapid loss in blood volume causes a precipitous decline in blood pressure. Describe—at the cellular level, the nephron level, and all the way up to the systemic level—each of the steps the heart, the kidneys, and the CNS will take to counter this loss in pressure and the processes by which each of these steps will work. Furthermore, many smaller local blood vessels will also be ruptured by the glass; describe in detail how these vessels, and the blood flowing into them, will act to limit blood loss at this local level.
Zach, a motorcycle rider, has his brakes suddenly fail; he rounds a corner and slams into the back of an SUV. His helmet keeps him alive, but he suffers a lacerated femoral artery from the broken glass; fortunately, the doctor is able to save him. Nevertheless, the rapid loss in blood volume causes a precipitous decline in blood pressure. Describe—at the cellular level, the nephron level, and all the way up to the systemic level—each of the steps the heart, the kidneys, and the CNS will take to counter this loss in pressure and the processes by which each of these steps will work. Furthermore, many smaller local blood vessels will also be ruptured by the glass; describe in detail how these vessels, and the blood flowing into them, will act to limit blood loss at this local level.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Zach, a motorcycle rider, has his brakes suddenly fail; he rounds a corner and slams into the back of an SUV. His helmet keeps him alive, but he suffers a lacerated femoral artery from the broken glass; fortunately, the doctor is able to save him. Nevertheless, the rapid loss in blood volume causes a precipitous decline in blood pressure. Describe—at the cellular level, the nephron level, and all the way up to the systemic level—each of the steps the heart, the kidneys, and the CNS will take to counter this loss in pressure and the processes by which each of these steps will work. Furthermore, many smaller local blood vessels will also be ruptured by the glass; describe in detail how these vessels, and the blood flowing into them, will act to limit blood loss at this local level.
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