EBK HUMAN PHYSIOLOGY
7th Edition
ISBN: 9780133983401
Author: Silverthorn
Publisher: YUZU
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Chapter 15, Problem 31RQ
(a)
Summary Introduction
To determine: The effect of the stiff aorta on the afterload.
Introduction: In a situation of advanced artherosclerosis, the healthy elastic arteries and aorta transform into a rigid and noncompliant structure.
(b)
Summary Introduction
To determine: The fate of mean pressure of arteries and peripheral resistance if the cardiac output remains constant.
Introduction: The mean arterial pressure is the average pressure that is present in the arteries of the living organism in one cardiac cycle. The peripheral resistance can be defined as the resistance offered by the arteries to the flow of the blood.
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Chapter 15 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 15 - Would you expect to find valves in the veins...Ch. 15 - Prob. 2CCCh. 15 - Who has the higher pulse pressure, someone with...Ch. 15 - The formula given for calculating MAP applies to a...Ch. 15 - Prob. 5CCCh. 15 - Resistance to blood flow is determined primarily...Ch. 15 - Prob. 7CCCh. 15 - Prob. 8CCCh. 15 - Skeletal muscle arterioles have both - and...Ch. 15 - Prob. 10CC
Ch. 15 - Prob. 11CCCh. 15 - Prob. 12CCCh. 15 - In the classic movie Jurassic Park, Dr. Ian...Ch. 15 - A man with liver disease loses the ability to...Ch. 15 - Prob. 15CCCh. 15 - Prob. 16CCCh. 15 - Malnourished children who have inadequate protein...Ch. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQCh. 15 - Prob. 6RQCh. 15 - List the factors that aid venous return to the...Ch. 15 - Prob. 8RQCh. 15 - Prob. 9RQCh. 15 - Prob. 10RQCh. 15 - Prob. 11RQCh. 15 - Most systemic arterioles are innervated by the...Ch. 15 - Match each event in the left column with all...Ch. 15 - Which organs receive more than two-thirds of the...Ch. 15 - By looking at the density of capillaries in a...Ch. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - Define edema. List some ways in which it can...Ch. 15 - Prob. 19RQCh. 15 - Prob. 20RQCh. 15 - Calcium channel blockers prevent Ca2+ movement...Ch. 15 - Prob. 22RQCh. 15 - Prob. 23RQCh. 15 - Define myogenic autoregulation. What mechanisms...Ch. 15 - Left ventricular failure may be accompanied by...Ch. 15 - Robert is a 52-year-old nonsmoker. He weighs 180...Ch. 15 - The following figure is a schematic representation...Ch. 15 - Prob. 28RQCh. 15 - Draw a reflex map that explains Anthonys vasovagal...Ch. 15 - Prob. 30RQCh. 15 - Prob. 31RQCh. 15 - Prob. 32RQCh. 15 - Prob. 33RQCh. 15 - Prob. 34RQCh. 15 - Prob. 35RQCh. 15 - Prob. 36RQCh. 15 - Prob. 37RQCh. 15 - Prob. 38RQ
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- The ST segment in the EKG is typically quiet and on the isoelectric line (like the T-P segment). What is happening during the ST segment in the EKG such that we see no waves? a) There is no electrical activity happening in the ventricles between the S and T waves b) The heart is relaxed and filling with blood c) The ST segment is representative of the plateau of the many ventricular action potentials happening at that point d) There is no longer Na+ influx during the ST segment so no waves are visible e) The ST segment is during ventricular repolarization and repolarization is not seen on the EKGarrow_forwardDuring the isovolumetric relaxation phase of ventricular diastole: O a) Both ventricular volume and ventricular pressure decrease O b) Both ventricular volume and ventricular pressure increase O c) Ventricular volume and ventricular pressure remain constant O d) Ventricular volume remains constant but ventricular pressure decreasesarrow_forwardWhat anatomic features slow the conduction rate of the action potential as it passes through the AV node? What is the function of this delay?arrow_forward
- During isovolumetric ventricular contraction: a) all valves are open and pressure within the ventricles decreases. b) all valves are open and pressure within the ventricles increases. c) all valves are closed and pressure within the ventricles decreases. d) all valves are closed and pressure within the ventricles increases.arrow_forwardList the major blood vessels and their origins involved in coronary circulation. (ii) At what stage or phase of the heart’s activities does the heart tissues becomes perfused with oxygenated blood? (iii) Define myocardial infarction. (iv) Explain the typical signs associated with acute myocardial infarction. (v) Outline/State which arteries of the heart are most commonly affected/occluded. (vi) Explain why occlusions lead to infarct in the heart. (vii) What is creatine phosphokinase (CPK) and why are elevated CPK levels in the blood suggestive of a myocardial infarction? (viii) What is cor pulmonale? (ix) Describe the main clinical findings (with cor pulmonale) on examination. Explain your answer.arrow_forward(a) What are the primary forces that cause fluid to move out of a capillary and into the interstitial fluid at its arterial end? (b) What are the primary forces that cause fluid to move into a capillary from the interstitial fluid at its venous end?arrow_forward
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