Which of these images best illustrates changes in lung function caused by acute asthma?Choose from the following:(A) (1)(B) (2)(C) (3) The image contains a series of graphs and spirometry test results relevant to pulmonary function testing.### Top Row: Forced Expiration Graphs1. **Normal Forced Expiration:** - The first graph shows a normal forced expiration curve. - FEV₁ (Forced Expiratory Volume in 1 second) = 4.0 L - FVC (Forced Vital Capacity) = 5.0 L - FEV₁/FVC ratio = 80%2. **Forced Expiration with Obstruction:** - The next two graphs depict reduced FEV₁ and FEV₁/FVC ratios, indicating obstructive lung disease. - Second graph: FEV₁ = 1.2 L, FVC = 3.0 L, FEV₁/FVC = 40% - Third graph: FEV₁ = 2.7 L, FVC = 3.0 L, FEV₁/FVC = 90%### Middle Row: Compliance Curves1. **Normal Compliance Curve:** - Total Lung Capacity (TLC) = 6 L - Residual Volume (RV) = 2 L2. **Increased Compliance Curve:** - Indicates an increase in lung compliance, suggesting emphysema. - TLC = 6.5 L, RV = 3 L - "Same as normal; 15 most distensible., as it often seen in emphysema."3. **Decreased Compliance Curve:** - Reflects decreased lung compliance, characteristic of restrictive lung disease. - TLC = 3 L, RV = 1 L### Bottom Row: Spirograms1. **Normal Spirogram:** - Shows normal inspiratory and expiratory volumes. - Includes: - IRV (Inspiratory Reserve Volume) - TV (Tidal Volume) - ERV (Expiratory Reserve Volume) - RV (Residual Volume)2. **Spirograms with Abnormal Patterns:** - Each spirogram demonstrates different pathological patterns of lung volume distribution. - (1): Similar to normal, possibly obstructive pattern. - (2): Shows reduced IRV and ERV, suggesting restricted lung volumes. - (3): Greatly reduced IRV, ERV, and overall volume, typical of significant restrictive

Asthma is a condition in which your airways become narrower and swollen and may produce more mucus.…

Answered: Which of these images best illustrates…

Which of these images best illustrates changes in lung function caused by acute asthma? Choose from the following: (A) (1) (B) (2) (C) (3)

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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1. Pulmonary fibrosis is a restrictive lung disease that is characterized by deposits of scar tissue. One symptom of pulmonary fibrosis is rapid exhalation. Which of the following statements regarding the lungs of a patient with pulmonary fibrosis is true? A) Elastic recoil is increased, compliance is decreased B) Elastic recoil is increased, compliance is increased C) Elastic recoil is decreased, compliance is decreased D) Elastic recoil is decreased, compliance is increased
54) Using an individual with a tidal volume of 500mL and a respiration rate of 10 breaths/min. What would be true when comparing the Minute Ventilation (MV) to the Alveolar Ventilation Rate? A) The minute ventilation rate would be greater. B) The alveolar ventilation rate would be greater. C) The minute ventilation and alveolar ventilation would be equal. D) The alveolar ventilation rate would equal 5 liters/minute.
Which of the following statements is true for Bohr effect: a. Bohr effect describes carbon monoxide poisoning. b. Bohr effect prevents oxygen binding to hemoglobin. c. Bohr effect allows effective oxygen discharge in tissues due to higher acidity (decreased pH) than in lungs. d. Bohr effect allows effective oxygen discharge in tissues due to lower acidity (increased pH) than in lungs.
With the Bohr effect, more oxygen is released because a(n)____. a) increase in pH(alkalosis) strengthens the hemoglobin-oxygen bond b) increase in pH(alkalosis) weakens the hemoglobin-oxygen bond c) decrease in pH (acidosis) weakens the hemoglobin-oxygen bond d) decrease in pH (acidosis) strengthens the hemoglobin-oxygen bond
Both the elastic property of the lung and the air :water interface contribute to the overall recoil of the lung. What are the relative contributions of the elastic property and the air: water interface to the recoil of the lung? A)both contribute equally to the recoil of the lung. B)the elastic tissue contributes ~33% to the recoil of the lung. C)the air:water interface contributes ~33% to the recoil of the lung. D)the elastic tissue contributes ~67% to the recoil of the lung. E)the air:water interface contributes ~90% to the recoil of the lung. With respect to LaPlace's Law, the amount of pressure needed to keep alveoli open when surfactant is missing will be A)increased B)decreased C)stay the same E)all of the above
Question 4 Explain all the steps involved in “positive cooperativity”, enabling oxygen binding to hemoglobin.
In the absence of 2,3-bisphosphoglycerate, the binding of oxygen by hemoglobin: a. is characterized by cooperativity b. resembles that of myoglobin c. binds at the end of the hemoglobin molecule d. is stabilized as the deoxy conformation of hemoglobin for the release into capillaries