What is the net movement of carbon dioxide gas, given the following: Partial pressure of carbon dioxide in the blood = 100 mmHg Partial pressure of carbon dioxide in the alveolar air = 95 mmHg Carbon dioxide will not move because the solubility coefficient for carbon dioxide is too small Carbon dioxide will not move because the concentration gradient is too small Carbon dioxide will move into the blood Carbon dioxide will move into the alveolus

What is the net movement of carbon dioxide gas, given the following: Partial pressure of carbon dioxide in the blood = 100 mmHg Partial pressure of carbon dioxide in the alveolar air = 95 mmHg Carbon dioxide will not move because the solubility coefficient for carbon dioxide is too small Carbon dioxide will not move because the concentration gradient is too small Carbon dioxide will move into the blood Carbon dioxide will move into the alveolus

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter13: The Respiratory System

Section: Chapter Questions

Problem 7RE

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Question 5 2. During inspiration, how does the partial pressure of oxygen in the alveoli changes relative to the deoxygenated blood in the lung capillaries to enable diffusion of oxygen across the alveolar membrane? (Mention if the partial pressure of oxygen is increased or decreased in the alveoli compared to capillary deoxygenated blood during inspiration, and how that affects oxygen diffusion across the alveolar membrane).
Question 6 In patients with pulmonary fibrosis, alveolar thickness is increased (due to tissue necrosis), and the alveolar area is reduced. Explain how increased alveolar thickness and the decreased area would affect the diffusion of oxygen from lung alveoli into capillary blood. (Use Fick’s equation to explain how oxygen diffusion will be affected when alveolar thickness increases and area decreases).
QUESTION 26 Which statement regarding the figure is correct? Atmospheric pressure (Patm) 760 mmHg -F Thoracic wall D 756 В 760 Lung Diaphragm Alveolar pressure (Paly) The transmural pressure labeled A will always be a positive value The alveolar pressure causes the pressure labeled D to change O The pressure labeled B is equal in magnitude to the chest wall recoil The transmural pressure labeled C is opposing the lung recoil
QUESTION 38 Which of the following statements is FALSE? O O The partial pressure of O₂ in the alveoli is higher than it is in the pulmonary capillaries so O2 diffuses from the alveoli to the pulmonary capillaries, The partial pressure of CO2 in the alveoli is 40 mm Hg and in the pulmonary capillaries it is 46 mm Hg. Although this is not a big pressure gradient, CO2 is very soluble so it diffuses from the pulmonary capillaries to the alveoli where it then is exhaled. The partial pressure of O₂ in the systemic capillaries is higher than it is in the body cells so O2 diffuses from the systemic capillaries to the body cells. The partial pressure of CO2 in the systemic capillaries is higher than it is in the body cells so CO2 diffuses from the systemic capillaries to the body cells.
QUESTION 38 Which of the following statements is FALSE? O C The partial pressure of O2 in the alveoli is higher than it is in the pulmonary capillaries so O2 diffuses from the alveoli to the pulmonary capillaries. The partial pressure of CO2 in the alveoli is 40 mm Hg and in the pulmonary capillaries it is 46 mm Hg. Although this is not a big pressure gradient, CO2 is very soluble so it diffuses from the pulmonary capillaries to the alveoli where it then is exhaled. The partial pressure of O2 in the systemic capillaries is higher than it is in the body cells so O2 diffuses from the systemic capillaries to the body cells. The partial pressure of CO2 in the systemic capillaries is higher than it is in the body cells so CO2 diffuses from the systemic capillaries to the body cells. 0
Question 60 You embark on a hiking trip on Mt. Kilimanjaro (altitude = 19,000 ft; Atmospheric air pressure = 379 mmHg). As you ascend, what happens to the PO 2 in the alveoli? No change from sea level, as long as we breathe in the same volume of air. Alveolar PO, decreases. Alveolar PO 2 increases.
Question 106 Match the following spirometric parameters to their definitions Tidal volume v [ Choose ] The amount of air that does not participate in exchange Normal amount of air inspired and expired at rest Dead air space Extra amount of air expired after a normal expiration The amount of air left in both lungs after expiration The amount of inspired air available for lung exchange Alveolar ventilation [ Choose ] Forced expiratory volume [ Choose] Residual volume [ Choose]
QUESTION 2 The chest wall transmural pressure Atmospheric pressure (Patm) = 760 mmHg F Thoracic wall [D G 756 760 Lung A Diaphragm Alveolar pressure (Paly) equals -4 mm Hg equals 0 mm Hg cannot be determined by the information provided in this figure equals +4 mm Hg
bronchioles [ Choose] (Choose] lead to the alveolar ducts, which terminate in the alveoli cilia thin, sensitive structures where actual gas exchange occurs in lungs area that includes the lingual and palatine tonsils at back of mouth includes the visceral and parietal membranes around lungs cellular structures that propel mucus & particles toward pharynx alveoli 1. TChoose ] pleura [ Choose] oropharynx [ Choose ]
QUESTION 7 This will cause a pressure gradient to occur causing air to move into the lungs. Intrapleural pressure becoming less than atmospheric pressure Intrathoracic pressure decreasing interpulmonic pressure Intrapulmonic pressure increasing intrapleural pressure Intrapulmonic pressure becoming less than atmospheric pressure OO
Question 1 Match the type of breathing with its description cessation of breathing (Choose 1 apnea increased respiratory rate and/or volume without increased metabolism hyperpnea tachycardia hyperventilation eupnea bradypnea dyspnea tachypnea hypoventilation increased respiratory rate and/or volume due to increased metabolism rapid breathing [ Choose ] difficulty breathing [ Choose ] normal breathing [ Choose ]
Question 16 Which of the following is essential for the proper functioning of the lungs? O optimal body temperature O diffusion of carbon dioxide from cells O essential nutrients from our diet sufficient oxygen O adequate atmospheric pressure