Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 15.2, Problem 4CC
The formula given for calculating MAP applies to a typical resting heart rate of 60-80 beats/min. If heart rate increases, would the contribution of systolic pressure to mean arterial pressure decrease or increase, and would MAP decrease or increase?
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Chapter 15 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 15.2 - Would you expect to find valves in the veins...Ch. 15.2 - Prob. 2CCCh. 15.2 - Who has the higher pulse pressure, someone with...Ch. 15.2 - The formula given for calculating MAP applies to a...Ch. 15.2 - Prob. 5CCCh. 15.3 - Resistance to blood flow is determined primarily...Ch. 15.3 - Prob. 7CCCh. 15.3 - Prob. 8CCCh. 15.3 - Skeletal muscle arterioles have both - and...Ch. 15.4 - Prob. 10CC
Ch. 15.4 - Prob. 11CCCh. 15.5 - Prob. 12CCCh. 15.5 - In the classic movie Jurassic Park, Dr. Ian...Ch. 15.6 - A man with liver disease loses the ability to...Ch. 15.6 - Prob. 15CCCh. 15.7 - Prob. 16CCCh. 15.7 - 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. 38RQCh. 15 - Prob. 39RQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- a) A consequence of the Frank-Starling law of the heart is that the outputs of the right and left ventricles match. Explain why this is important and how this match is made.b) The excitation-contraction matching mechanism within the heart muscle is different from that of the skeletal muscle. How might these differences be related to the difference between action potentials in cardiac muscle and skeletal muscle?arrow_forwardConsider the ventricular cardiomyocyte action potential shown below: a) Which phase of the cardiac myocyte action potential would be most significantly affected by the L-type calcium channel blocker nifedipine? b) Draw the predicted effects of nifedipine on the cardiac myocyte action potential.arrow_forwardName three mechanisms that can increase cardiacoutput.arrow_forward
- I need to calculate the approximate heart rate based on the given ECG results, but I can't get how to determine the length of time between two consecutive R waves. What I see, it's one second between the two highest waves (I suppose they are R waves). But it means the heart rate should be 60 beats per minute, but there is no option for this answer. Teach me how to determine correctly the length of time between two consecutive R waves.arrow_forwardIn resting state: For a heart that would have a left ventricle of 130 mL of end diastolic volume (EDV) and 60 mL of end systolic volume (ESV) and a heart rate 60 bpm. A. Calculate the output your pump should provide to the aortic arch. (in units of L/min) B. In moderate activity state: If the heart rate is expected to increase by 15% Calculate the output your pump should provide to the aortic arch hibernation levels so they can go back to sleep. A mitochondria-rich tissue called "brown fat" is responsible for this heat-generation.arrow_forwardFrank-Starling law of the heart states: if you increase the stretch of the cardiac muscle fibers you will decrease the force of contraction a greater end diastolic volume will produce a weaker contraction of the ventricle by increasing the force of ventricular contraction you will increase the end systolic volume if you increase the stretch of the cardiac muscle fibers you will increase the force of contraction.arrow_forward
- Write the formula relating cardiac output, heart rate, and strokevolume; give normal values for a resting adult?arrow_forward4) A) Calculate the Systolic Pressure of a 65 years old man if the diastolic blood pressure is 90 mmHg and stroke volume of 70 ml/beat. Total Peripheral Resistance is 19mmHg.min/L. Assume person is healthy and has a normal heart rate. B) Calculate Left ventricular end-diastolic volume (LVEDV) when the mean ejection fraction is 80 % ?arrow_forwardCalculate heart rate (BPM) with dimensional analysis. Heart is beating ever 1.13 seconds what would be the calculated heart rate per minute?arrow_forward
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