ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
4th Edition
ISBN: 9781265061173
Author: McKinley
Publisher: MCG CUSTOM
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Textbook Question
Chapter 23, Problem 4CAL
Use the following to answer questions 2–4.
Michelle, age 45, has been smoking for over 30 years. She now is beginning to have trouble breathing. Her physician sent her to have her respiratory function tested. The results showed that she has emphysema, which is characterized by a decreased surface area for alveolar gas exchange.
4. Blood samples were also taken. Which results might be expected for her blood respiratory gases and blood pH?
- a. decrease in PO2, increase in PCO2, decrease in blood pH
- b. decrease in PO2, decrease in PCO2, decrease in blood pH
- c. decrease in PO2, increase in PCO2, increase in blood pH
- d. increase in PO2, decrease in PCO2, increase in blood pH
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Alveolar ventilation-perfusion ratio that is greater than one means:a. increase in the utilization coefficient c. alveolar PCO2 < venous PCO2b. alveolar PO2 is in equilibrium with tissue PO2 d. arterial PO2 > alveolar PO2
Choose all possible correct answers. Peristalsis in the small intestine is increased by which of the following factors?a. occlusion of small pulmonary arteries c. increased levels of glucagonb. stretch in the stomach walls d. stretch in duodenal walls
1. Explain why a person with ketoacidosis may hyperventilate. What benefit might this provide?
2. Using a flowchart, explain how a rise in blood partial pressure of carbon dioxide stimulates breathing. Include both the central and peripheral chemoreceptors in your answer.
In which of the following situations would we expect atelectasis to develop?
A.
pressure in alveoli becoming greater than atmospheric
B.
pressures in the pleural cavity and alveoli equalising
C.
pressure in the pleural cavity becoming smaller than atmospheric
D.
decreased partial pressure of oxygen in blood
E.
breathing air under higher pressure in hyperbaric chamber
Chapter 23 Solutions
ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
Ch. 23.1 - Which respiratory structure is associated with the...Ch. 23.1 - Prob. 2WDYLCh. 23.1 - In what ways does the epithelium of the upper...Ch. 23.2 - What changes occur to inhaled air as it passes...Ch. 23.2 - Prob. 5WDYLCh. 23.2 - What two regions of the pharynx contain tonsils?...Ch. 23.2 - How does the larynx assist in increasing abdominal...Ch. 23.2 - What are the three unpaired cartilages in the...Ch. 23.2 - Prob. 9WDYLCh. 23.3 - What is the function of the C-shaped tracheal...
Ch. 23.3 - What are the significant structural differences...Ch. 23.3 - Which of the following respiratory structures are...Ch. 23.3 - The respiratory tract can be damaged from...Ch. 23.3 - Prob. 14WDYLCh. 23.3 - Prob. 15WDYLCh. 23.4 - Match the component of the ling with its air...Ch. 23.4 - Prob. 17WDYLCh. 23.4 - What is the function of serous fluid within the...Ch. 23.4 - Why is the intrapleural pressure normally lower...Ch. 23.5 - Prob. 20WDYLCh. 23.5 - Describe the sequence of events of quiet...Ch. 23.5 - How are larger amounts of air moved between the...Ch. 23.5 - Prob. 23WDYLCh. 23.5 - Which of the following stimuli will cause an...Ch. 23.5 - Are the skeletal muscles of breathing innervated...Ch. 23.5 - The two factors that determine airflow are the...Ch. 23.5 - A person in yoga class is encouraged to take long,...Ch. 23.5 - Prob. 28WDYLCh. 23.6 - Given the same partial pressure for oxygen and...Ch. 23.6 - How do the partial pressures of oxygen and carbon...Ch. 23.6 - Prob. 31WDYLCh. 23.6 - How do the partial pressures of oxygen and carbon...Ch. 23.7 - Why is such a small percentage (about 2%) of...Ch. 23.7 - How is the majority of carbon dioxide transported...Ch. 23.7 - How does oxygen movement occur during alveolar gas...Ch. 23.7 - How does carbon dioxide movement occur during...Ch. 23.7 - Does hemoglobin saturation increase or decrease...Ch. 23.7 - How is oxygen release from hemoglobin during...Ch. 23.8 - How does blood PO2 and PCO2 change if an...Ch. 23.8 - How does blood PO2 and PCO2 change during...Ch. 23.8 - Prob. 41WDYLCh. 23 - Prob. 1DYKBCh. 23 - Prob. 2DYKBCh. 23 - Prob. 3DYKBCh. 23 - Prob. 4DYKBCh. 23 - Prob. 5DYKBCh. 23 - Which areas of the brain contain the respiratory...Ch. 23 - Prob. 7DYKBCh. 23 - Prob. 8DYKBCh. 23 - Prob. 9DYKBCh. 23 - Prob. 10DYKBCh. 23 - Explain how the respiratory tract is organized...Ch. 23 - Describe the relationship of the visceral pleura,...Ch. 23 - List the four processes of respiration, in order,...Ch. 23 - Describe the muscles, volume changes, and pressure...Ch. 23 - Explain how additional air is moved during a...Ch. 23 - Describe bow quiet breathing is controlled by the...Ch. 23 - Explain alveolar and systemic gas exchange.Ch. 23 - List the two means by which oxygen is transported...Ch. 23 - Describe the relationship of PCO2 and hemoglobin...Ch. 23 - List the variables that increase the release of...Ch. 23 - Paramedics arrived at a car accident to find an...Ch. 23 - Use the following to answer questions 24....Ch. 23 - Use the following to answer questions 24....Ch. 23 - Use the following to answer questions 24....Ch. 23 - Prob. 5CALCh. 23 - Prob. 1CSLCh. 23 - The nerve to the sternocleidomastoid muscle was...Ch. 23 - Prob. 3CSL
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