Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Question
Chapter 4, Problem 3RQ
Summary Introduction
Introduction:
The partial pressure of a gas can be defined as the force exerted by that specific gas in a mixture of various gases. Atmospheric pressure is defined as the pressure that is exerted by the atmosphere on a surface or a body. The value of atmospheric pressure is 760 mm Hg (millimeters of mercury).
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Students have asked these similar questions
Which of the following gas laws states that in a mixture of gases the total pressure is equal to the sum of the partial pressure of each gas? A. Dalton's law C. Charles' law B. Gay-Lussac's law D. Boyle's law
Which of the following is NOT a determinant of gas exchange as described by Fick's Law?
a.
Steepness of the concentration gradient
b.
Number of ion channels in alveolar membrane
c.
Thickness of the alveolar membrane
d.
Permeability of the alveolar membrane to gases
e.
Surface area of the alveolar membrane
Match the Law/Effect with its definition/description
A. Boyle’s Law
B. Henry’s Law
C. Dalton’s Law
D. Haldane Effect
E. Bohr Effect
1. The pressure of a gas is inversely proportional to its volume
2. A lower, more acidic pH promotes oxygen dissociation from hemoglobin
3. Hemoglobin saturated with oxygen has a low affinity for carbon dioxide
4. The concentration of a gas in a liquid is directly proportional to the solubility and partial pressure of that gas
5. The total pressure exerted by a mixture of gases is the sum of the partial pressures of the gases in the mixture
Chapter 4 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - 4. At sea level, the normal percentage of carbon...Ch. 4 - At sea level, the alveolar water vapor pressure in...Ch. 4 - If a patient is receiving an FIO2 of 0.60 on a day...Ch. 4 - Prob. 7RQCh. 4 - Under normal resting conditions, the diffusion of...Ch. 4 - 9. Which of the following states that the rate of...Ch. 4 - According to Ficks law, gas diffusion is 1....
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Similar questions
- Gas moves from an area of ________ partial pressure to an area of ________ partial pressure. low; high low; low high; high high; lowarrow_forwardWhat are some advantages of gas exchange in air over gas exchange in water?arrow_forward9. Which of the following states that the rate of gas diffusion is inversely proportional to the weight of the gas? A. Graham’s law B. Charles’ law C. Henry’s law D. Gay-Lussac’s lawarrow_forward
- Explain what a partial pressure gradient is and how such gradients figure in gas exchange.arrow_forwardPlace the following gases in order of increasing average velocity at 300 K: Ar, CH4, N2, and N2O. ON2Oarrow_forwardSelect the best answer or answers from the choices given: Which of the following determines the direction of gas movement? (a) solubility in water, (b) partial pressure gradient, (c) temperature, (d) molecular weight and size of the gas molecule.arrow_forwardThe following factors affect the oxygen hemoglobin curve (unloading of O2) EXCEPT: a. Temperature. b. PH. c. Diphosphoglycerate. d. Tidal volume.arrow_forwardWhich of the following best describes the gas exchange that occurs in the lungs? A. carbon dioxide diffuses into the capillaries from the alveoli B. oxygen diffuses from the capillaries into the alveoli C. carbon dioxide diffuses from the capillaries into the alveoli D. oxygen diffuse into the alveoli from the capillariesarrow_forwardUse the following scenario for the next question: After a normal inspiration, Mary’s normal expiration was 400 mls. Following a normal expiration, she was able to expel an additional 800 mls. Taking as deep a breath as possible and forcefully exhaling all air possible yielded an output of 2.4 L. (Note: 1L = 1000ml) A. What is Mary’s TV? Explain how you arrived at your answer. Be sure to include units (use either liters, milliliters or cubic centimeters). B. What is Mary’s expiratory reserve volume? Explain how you arrived at your answer. Be sure to include units. C. What is Mary’s inspiratory reserve volume? Explain how you arrived at your answer. Be sure to include units.arrow_forwardInspiration occurs when: a. atmospheric pressure is greater than the pressure found inside the lungs (alveoli) b. atmospheric pressure is less than the pressure found inside the lungs c. the intrapleural pressure is greater than the pressure found in the atmosphere d. the atmospheric pressure is equal to the pressure found inside the lungsarrow_forwardUsing the full and simplified versions of the alveolar gas equation, determine the partial pressure of carbon dioxide in the alveoli for an oxygen partial pressure of 160 mm Hg in the alveoli, a total pressure of 810 mm Hg, a partial pressure of oxygen in the surrounding air of 204 mm Hg, and a respiratory exchange ratio of 0.8. And provide one reason why this equation is essential for clinicians in a hospital setting. In your answer, comment on calculation/computation compared to accurately measure this value inside an individual alveoli.arrow_forwardWhy difference in pressure can be produced with sudden changes in altitude?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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