Human Physiology: An Integrated Approach (7th Edition)
7th Edition
ISBN: 9780321981226
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 14, Problem 3CC
Which is more important for determining flow through a tube: absolute pressure or the pressure gradient?
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the pressure difference through a patient's blood vessel is 80mmHg. the resistance of the vessel is 266.67mmHg min/L. What is the flow through this vessel?
Given the following information, calculate cardiac output: R-R interval =
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7.0 L/min
10.0 L/min
O 13.0 L/min
O 15.0 L/min
The patient cole is sitting on a chair. Suppose
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measurement, with the cuff placed 10 cm
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(a) How much of an error (difference in
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measurement? Assume that the blood is static
for simplicity. The density of blood is 1050
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AP =
(b) If the systolic & diastolic blood pressures
from the patient's heart is 125 & 85
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3
Chapter 14 Solutions
Human Physiology: An Integrated Approach (7th Edition)
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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- What is the value of the blood flow’s Reynolds number in the capillaries? (i.e.,while using the Re based on pipe diameter). a) Less than 1b) 1060c) 2300d) more than 2300arrow_forwardBlood Flow (BF)= (diff. in) Pressure (P) /Resistance (R) Assign these numbers to the equation above: If 6/3=2, when you increase 3, what happens to 6 in order to get 2 to stay the same?arrow_forwardWhat is the pressure gradient equal to?arrow_forward
- a patient weighs 115 lb and is receiving a medication via an IV (600mg/500 mL) infusion at 20 mL/hr per volumetric pump. How many mcg/kg per minute is being given?arrow_forwardGiven the following values, calculate the fluid movement between capillaries and tissues: hydrostatic pressure of the capillary = 25 mm Hg hydrostatic pressure of the interstitial fluid = 5 mm Hg colloid osmotic pressure of the capillary = 15 mm Hg colloid osmotic pressure of the interstitial fluid = 5 mm Hg Group of answer choices 30 mm Hg into the capillary 30 mm Hg out of the capillary 10 mm Hg into the capillary 10 mm Hg out of the capillaryarrow_forwardWhich of the two tubes (A or B) simply acts like a pipe that fluid flows through without any exchange along the tube?arrow_forward
- What is the blood flow rate through a vessel given the following: ΔP = 120 mmHg; radius = 6 mm; length = 20 mm; and viscosity of the blood = 4.5? ? (conversion factors: 1 mmHg = 0.013 dynes/cm2 and a viscosity of 1.0 = 0.01 dyne sec/cm2)arrow_forwardGiven EDV = 150 mL and ESV = 50 mL, calculate the ejection fraction, EF = SV/ %3D EDV.arrow_forwardMake a list of the different physiological equations: 1. Fick equation for oxygen diffusion = 2. Simple estimation for heart rate max = 3. Equation to convert absolute VO2 (Liters of 02/min) to relative VO2 (ml/kg/min) =arrow_forward
- can you please explain how to use this formula. Mean Arterial Pressure(MAP)=CO x PR CO=SV x HRarrow_forwardif a patient with the P-V loop below had a heart rate of 50 BPM, their cardiac output would be approximately 6.25 L/min 125 ml/min 625 L/min 8.75 L/minarrow_forwardBlood pressure is usually given as the ratio of the maximum pressure (systolic pressure) to the minimum pressure (diastolic pressure). For example a typical value for this ratio for a human would be 120/70, where the pressures are in mm Hg (millimeters of mercury, SG = 13.6). What would these pressures be in kPa (kilo Pascals)?: (a) systolic pressure (kPa), (b) diastolic pressure (kPa).arrow_forward
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