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.
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- Question 39 At FRC the alveolar pressure is OA. Equal to plural pressure OB. Equal to atmospheric pressure OC. More negative that plural pressure OD. Less than atmospheric pressure O E. Greater than atmospheric pressureQUESTION 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 OOQUESTION 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 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 28 de cad O C. Systemic arterial PCO2 O D. Pulmonary arterial PO2 O E. Respiratory quotient (R) JARACA The alveolar gas equation is used to determine the partial pressure of alveolar oxygen by using a measure of the O A. Systemic arterial PO2 OB. Systemic venous PO2 FREEQUESTION 1 Gas exchange occurs in which part of the respiratory system? Select ALL correct answers: Alveoli Trachea Bronchi Bronchioles 000
- Question 12 Which of the following about the pleural sacs is incorrect? O Provide lubrication between moving organs O Compartmentalize thoracic cavity O Comprised of triple-layered membrane of stratified squamous epithelium O Intrapleural pressure keeps lungs partially expanded at all times O One sac per lung, which are stuck to lung, chest wall, and diaphragm • PreviousQuestion 23 Which structure of the lung is highlighted? inferior lobe of right lung inferior lobe of left lung superior lobe of left lung superior lobe of right lungbronchioles [ 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 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 pressureQUESTION 41 What is the net movement of carbon dioxide gas, given the following: Partial pressure of carbon dioxide in the blood Partial pressure of carbon dioxide in the alveolar air = 95 mmHg = 100 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 alveolusQUESTION 36 Place the following parts of the respiratory system in the order in which air passes. Jalveolar duct pharynx respiratory bronchioles secondary bronchi trachea primary bronchi terminal bronchioles tertiary bronchi alveoli nose larynx