EBK HUMAN PHYSIOLOGY
7th Edition
ISBN: 9780133983401
Author: Silverthorn
Publisher: YUZU
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Chapter 14, Problem 4RQ
Summary Introduction
Introduction: Cardiovascular system consists of heart and blood vessels. The heart pumps the blood and blood vessels deliver the blood to different of the body. The blood does the transport of oxygen and nutrients to the body tissues.
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Chapter 14 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 14 - A cardiovascular system has what three major...Ch. 14 - What is the difference between (a) the pulmonary...Ch. 14 - Which is more important for determining flow...Ch. 14 - The two identical tubes below have the pressures...Ch. 14 - All four tubes below have the same driving...Ch. 14 - Two canals in Amsterdam are identical in size, but...Ch. 14 - What prevents electrical signals from passing...Ch. 14 - Prob. 8CCCh. 14 - Prob. 9CCCh. 14 - Compare the receptors and channels involved in...
Ch. 14 - If a myocardial contractile cell is placed in...Ch. 14 - A drug that blocks all Ca2+ channels in the...Ch. 14 - Which ions moving in what directions cause the...Ch. 14 - At the molecular level, what is happening during...Ch. 14 - Lidocaine is a molecule that blocks the action of...Ch. 14 - What does increasing K+ permeability do to the...Ch. 14 - A new cardiac drug called ivabradine selectively...Ch. 14 - Do you think that the Ca2+ channels in...Ch. 14 - What happens to the action potential of a...Ch. 14 - In an experiment, the vagus nerve, which carries...Ch. 14 - Name two functions of the AV node. What is the...Ch. 14 - Prob. 22CCCh. 14 - Occasionally an ectopic pacemaker {ktopos, out of...Ch. 14 - Prob. 24CCCh. 14 - Which chamberatrium or ventriclehas higher...Ch. 14 - Prob. 26CCCh. 14 - Prob. 27CCCh. 14 - Prob. 28CCCh. 14 - Prob. 29CCCh. 14 - Why does ventricular pressure shoot up suddenly at...Ch. 14 - Prob. 31CCCh. 14 - Prob. 32CCCh. 14 - A persons aortic valve opening has become...Ch. 14 - What contributions to understanding the...Ch. 14 - List three functions of the cardiovascular system.Ch. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Distinguish between the two members of each of the...Ch. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - What is the proper term for each of the following?...Ch. 14 - List the events of the cardiac cycle in sequence,...Ch. 14 - Prob. 13RQCh. 14 - Compare and contrast the structure of a cardiac...Ch. 14 - Prob. 15RQCh. 14 - Correlate the waves of an ECG with mechanical...Ch. 14 - Prob. 17RQCh. 14 - List and briefly explain four types of information...Ch. 14 - Define inotropic effect. Name two drugs that have...Ch. 14 - Prob. 20RQCh. 14 - Police Captain Jeffers has suffered a myocardial...Ch. 14 - Prob. 22RQCh. 14 - Prob. 23RQCh. 14 - Police Captain Jeffers in question 21 has an...Ch. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - Prob. 27RQCh. 14 - A person has a total blood volume of 5 L. Of this...
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- You are studying bulk flow in a tissue. You have measured the following: Blood pressure at the arterial end of the capillary – 30mmHg Osmotic pressure at the arterial end of the capillary – 20 mmHg partial pressure of oxygen at the arterial end of the capillary – 42 mmHg; partial pressure of CO2 – 40mmHg partial pressure of O2 at the venous end – 42 mmHg; partial pressure of CO2 – 46mmHg Blood pressure at the venous end of the capillary – 14mmHg Osmotic pressure at the venous end of the capillary – 20 mmHg Pick all that would apply A)the 10 mm Hg pressure difference will drive blood plasma into the interstitial fluid B)the 6 mm Hg pressure difference will drive blood plasma into the interstitial fluid C)the hydrostatic pressure declines from the arterial side to the venous side because oxygen is lost. D)the pH is lower on the arterial side than on the venous side. E)the osmotic pressure remains constant due to carbon dioxide compensation. F)oxygen is taken up by the…arrow_forwardHemodynamics are the dynamics of blood flow. Can the Bernoulli's equation be used to study hemodynamics in the cardiovascular system? Why or why not? You should discuss all four of the assumptions of Bernoulli's equation when answering this question. Jugular vein (also subclavian vein from arms) Pulmonary artery Superior vena cava Interior vena cava Hepatic vein Liver Hepatic portal vein Renal vein Iliac vein CO₂ CO₂ Head and arms Lungs Heart Kidneys Trunk and legs Carotid artery (also subclavian artery to arms) Pulmonary vein Aorta Hepatic artery Mesenteric arteries Digestive tract Renal artery Iliac arteryarrow_forwardThe pressure in the aorta changes throughout the cardiac cycle. During systole, as the heart contracts, the outflux of blood into the aorta causes an increase in pressure, whereas during diastole the pressure decreases as the heart relaxes. A simple model for the aortic pressure waveform is given by the Windkessel effect described by the image below. In this model, the heart is considered a pressure generating pump which is directly connected to an elastic compartment (the aorta), which in turn is connected to a rigid set of peripheral vessels (the hose of the firefighter). 5 Pump Heart Air Windkessel Elastic arteries In order to find the aortic pressure waveform from the Windkessel model, a mass balance formulation around the aorta must be formulated. Coming into the aorta from the heart we have the flowrate Q(t). According to conservation of mass, this inflow rate Q(t) must be equal to the outflow rate into the peripheral vessels and the change in volume of the aorta. To find these…arrow_forward
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- Given the following pressures on the venous end of a capillary, calculate the NET pressure and determine if this pressure is in favor of filtration or reabsorption. Blood pressure: 15 mmHg Hydrostatic pressure in the tissues: -3 mmHg Colloid Osmotic Pressure in a capillary: 28 mmHg Colloid Osmotic Pressure in tissue: 8 mmHgarrow_forwardWhich of the following are intrinsic factors that regulate blood flow? Choose all that apply. Vasopressin (antidiuretic hormone) Histamines and nitric oxide Metabolic activity Parasympathetic nervous system Increased carbon dioxide concentrationarrow_forwardDuring exercise, arterial blood pressure changes very little. However, cardiac output may double and blood flow to exercising muscle may go up 10-fold, while at the same time the blood flow to kidneys may decline by nearly 50%. Explain possible mechanisms that might account for these very different changesarrow_forward
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