Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Textbook Question
Chapter 4, Problem 10RQ
According to Fick’s law, gas diffusion is
1. Directly proportional to the thickness of the tissue
2. Indirectly proportional to the diffusion constants
3. Directly proportional to the difference in partial pressure of the gas between the two sides
4. Indirectly proportional to the tissue area
A. 1 only
B. 3 only
C. 4 only
D. 2 and 3 only
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According to Fick's law, gas diffusion is 1. Directly proportional to the thickness of the tissue 2. Indirectly proportional to the diffusion constants 3. Directly proportional to the difference in partial pressure of the gas between the two sides 4. Indirectly proportional to the tissue area A. 1 only B. 3 only C. 4 only D. 2 and 3 only
If partial pressure of oxygen were about 35 MMHG and the capillaries then a. the cells would not need extra oxygen
b. CO2 pressure would be very low in the cells
c. it would not be able to diffuse into the tissue cells
d. it would easily travel and capillaries and if used to the needy cells
Which of the following are true?
A. Peripheral Chemo receptors for O2 in H+ ions are found in the carotid and aortic bodies.
B. Peripheral chemoreceptors for O2 and H+ ions are found only in the carotid body.
C. Peripheral chemoreceptors for O2 and H+ ions are found only in the aortic body.
D. O2 and CO2 are monitored in the medulla
Choose the correct answer
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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- 4. The number of alveoli continues to increase until about A. 6 years of age B. 8 years of age C. 10 years of age D. 12 years of agearrow_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_forwardWhich of the following cause(s) passive changes in the pulmonary vascular resistance? 1. pH changes 2. Transpulmonary pressure changes 3. P(co2) changes 4. Blood viscosity changes A. 2 only B. 3 only C. 1 and 3 only D. 2 and 4 onlyarrow_forward
- Select the disease which makes lungs lose its elasticity due to the inflammation of alveoli. A. Lung cancer B. Pneumonia C. Bronchitis D. Emphysema Recognize the correct adjustment in our body during acclimatization tohigh altitude. A. Ventilation rate decreases B. Hemoglobin affinity for oxygen increases in the tissue C. Kidney increases urinary excretion of bicarbonate ions D. Hemoglobin production decreasesarrow_forwarda. Why is a minimum flow rate of 5 Lpm recommended for oxygen delivery by mask? b. Why will an air entrainment mask never deliver 100% oxygen? c. Briefly explain why the trans-tracheal catheter requires less oxygen flow than the nasal cannula to achieve a given arterial partial pressure of oxygen. d. Explain the difference between a high-flow and a low-flow oxygen delivery system. Give an example of each.arrow_forwardWhich of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheral tissues? a. decreased amounts of DPG b. increased tissue PO2 c. decreased pH d. decreased temperature e. all of the abovearrow_forward
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