Seeley's Anatomy & Physiology
11th Edition
ISBN: 9781259254963
Author: Jennifer Regan (author), Andrew Russo (author), Rod Seeley (author) Cinnamon Vanputte (author)
Publisher: McGraw Hill Higher Education
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Chapter 23, Problem 16RAC
Summary Introduction
Introduction:
The oxygen-hemoglobin dissociation curve describes the saturation percent of hemoglobin present in the blood at different values of the partial pressure of oxygen.
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The oxygen-hemoglobin dissociation curve is adaptive because ita. shifts to the right in the pulmonary capillaries and to the left in thetissue capillaries.b. shifts to the left in the pulmonary capillaries and to the right in thetissue capillaries.c. does not shift.
Which of the following will cause the largest increase in systemic arterial oxygen saturation in the blood?a. an increase in red cell concentration (hematocrit) of 20%b. breathing 100% O2 in a healthy subject at sea levelc. an increase in arterial PO2 from 40 to 60 mmHgd. hyperventilation in a healthy subject at sea levele. breathing a gas with 5% CO2, 21% O2, and 74% N2 at sea level
At the site of gas exchange; which of the following is true?
A. The alveoli and capillaries walls are thin which allowed for rapid diffusion of gas.
B. When there is edema and swelling at the alveoi and capillary interface there is rabbit exchange of CO2.
C. When there is edema and swelling at the alveoli and capillaries in her face there is rapid exchange of oxygen.
D. The alveolar in capillary walls or take which allows for measured in rapid diffusion of gas.
Choose the correct answer
Chapter 23 Solutions
Seeley's Anatomy & Physiology
Ch. 23.1 - Prob. 1AYPCh. 23.1 - Explain the functions of the respiratory system.Ch. 23.2 - Prob. 3AYPCh. 23.2 - Explain how the conducting zone differs from the...Ch. 23.2 - Describe the structures of the nasal cavity.Ch. 23.2 - Prob. 6AYPCh. 23.2 - Prob. 7AYPCh. 23.2 - Prob. 8AYPCh. 23.2 - Distinguish between the vestibular and vocal...Ch. 23.2 - How does the position of the arytenoid cartilages...
Ch. 23.2 - What are the four functions of the larynx?Ch. 23.2 - Explain the branching of the tracheobronchial...Ch. 23.2 - Describe the arrangement of cartilage, smooth...Ch. 23.2 - How is debris removed from the trocheobronchial...Ch. 23.2 - Name the two types of cells in the alveolar wall,...Ch. 23.2 - Prob. 16AYPCh. 23.2 - Distinguish among a lung, a lung lobe, a...Ch. 23.2 - Prob. 18AYPCh. 23.2 - List the muscles of inspiration, and describe...Ch. 23.2 - Name the pleurae of the lungs. What is their...Ch. 23.2 - What are the two major routes of blood flow to and...Ch. 23.2 - Prob. 22AYPCh. 23.3 - What is ventilation?Ch. 23.3 - How do pressure differences and resistance affect...Ch. 23.3 - Prob. 25AYPCh. 23.3 - Prob. 26AYPCh. 23.3 - Prob. 27AYPCh. 23.3 - Prob. 28AYPCh. 23.3 - Prob. 29AYPCh. 23.3 - Prob. 30AYPCh. 23.3 - Prob. 31AYPCh. 23.3 - Prob. 32AYPCh. 23.3 - Prob. 33AYPCh. 23.4 - Prob. 34AYPCh. 23.4 - Prob. 35AYPCh. 23.4 - Prob. 36AYPCh. 23.4 - Prob. 37AYPCh. 23.4 - Prob. 38AYPCh. 23.4 - What is dead space? Contrast anatomical dead space...Ch. 23.5 - Prob. 40AYPCh. 23.5 - Prob. 41AYPCh. 23.5 - Prob. 42AYPCh. 23.5 - Describe the four factors that affect the...Ch. 23.5 - Does O2 or CO2 diffuse more easily through the...Ch. 23.5 - What effect do alveolar ventilation and Pulmonary...Ch. 23.5 - What are the anatomical shunt and the...Ch. 23.5 - Prob. 47AYPCh. 23.6 - Describe the partial pressure of O2 and CO2 in the...Ch. 23.6 - How do these pressures account for the movement of...Ch. 23.6 - Prob. 50AYPCh. 23.6 - Prob. 51AYPCh. 23.6 - What is the Bohr effect? How is it related to...Ch. 23.6 - Prob. 53AYPCh. 23.6 - Prob. 54AYPCh. 23.6 - Prob. 55AYPCh. 23.6 - Prob. 56AYPCh. 23.6 - Prob. 57AYPCh. 23.6 - Prob. 58AYPCh. 23.6 - Prob. 59AYPCh. 23.6 - Prob. 60AYPCh. 23.6 - Prob. 61AYPCh. 23.7 - Prob. 62AYPCh. 23.7 - Prob. 63AYPCh. 23.7 - Prob. 64AYPCh. 23.7 - Prob. 65AYPCh. 23.7 - Prob. 66AYPCh. 23.7 - Prob. 67AYPCh. 23.7 - Prob. 68AYPCh. 23.7 - Prob. 69AYPCh. 23.7 - Prob. 70AYPCh. 23.8 - Prob. 71AYPCh. 23.9 - Why do vital capacity, alveolar ventilation, and...Ch. 23.9 - Prob. 73AYPCh. 23 - The nasal cavity a. has openings, the paranasal...Ch. 23 - The larynx connects the oropharynx to the trachea....Ch. 23 - Terminal bronchioles branch to form a. the...Ch. 23 - Prob. 4RACCh. 23 - During quiet expiration, the a. abdominal muscles...Ch. 23 - Prob. 6RACCh. 23 - Prob. 7RACCh. 23 - Prob. 8RACCh. 23 - Prob. 9RACCh. 23 - Prob. 10RACCh. 23 - Prob. 11RACCh. 23 - Prob. 12RACCh. 23 - Prob. 13RACCh. 23 - Prob. 14RACCh. 23 - Prob. 15RACCh. 23 - Prob. 16RACCh. 23 - Prob. 17RACCh. 23 - Prob. 18RACCh. 23 - Which of these parts of the brainstem is correctly...Ch. 23 - Prob. 20RACCh. 23 - Prob. 21RACCh. 23 - Prob. 1CTCh. 23 - Prob. 2CTCh. 23 - Prob. 3CTCh. 23 - One technique for artificial respiration is...Ch. 23 - Prob. 5CTCh. 23 - Prob. 6CTCh. 23 - Prob. 7CTCh. 23 - Prob. 8CTCh. 23 - Prob. 9CTCh. 23 - Prob. 10CTCh. 23 - Compliance of the lungs and thorax is the volume...
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- The oxyhemoglobin dissociation (saturation) curve shifts to the right as the blood becomes more acidic. Under these conditions answer the following. At a P O2 = 40 mmHg the percent saturation of hemoglobin __________ and the content of oxygen bound to hemoglobin ____________. A. Decreases; decreases B. Increases; increases C. Increases; decreases D. Decreases; increases E. Does not change; does not changearrow_forwardWhich of the following is true?a. Peripheral chemoreceptors increase firing with low arterial PO2 but are not sensitive to an increase in arterial PCO2.b. The primary stimulus to the central chemoreceptors is low arterial PO2.c. Peripheral chemoreceptors increase firing during a metabolic alkalosis.d. The increase in ventilation during exercise is due to a decrease in arterial PO2.e. Peripheral and central chemoreceptors both increase firing when arterial PCO2 increases.arrow_forwardwhen carbon dioxide travelling in the plasma reaches the alveolus and is exhaled, then what happens is that a. the volume of CO2 dissolved in the plasma would continue to drop until it reached zero b. the bicarbonate ion volume in the plasma would increase c. respiration would be stimulated and tidal volume would go up d. the CO2 attached onto the hemoglobin would release CO2 into the plasmaarrow_forward
- Draw three separate oxygen-hemoglobin dissociation curves and then use arrows to show the change in oxygen saturation of most hemoglobins when: 1. deoxygenated blood enters the capillaries in the lungs. 2. oxygenated blood enters the capillaries in muscle tissue at rest. 3. oxygenated blood enters the capillaries in muscle tissue during vigorous exercise.arrow_forwardWhen the diaphragm contracts (moves down), which of the following will occur in the lungs? Select one: a. Volume will decrease, Air pressure will increase and expiration will oCcur. b. Volume will increase, Air pressure will increase, and inhalation will occur. c. Volume will increase, Air pressure will decrease, and inspiration will occur. O d. Volume will increase, Air pressure will decrease, and expiration will occur.arrow_forwardWhich of the following occurs for expiration to occur? a. the thoracic volume decreases b. the thoracic volume increases c. the intrapulmonary pressure decrease compared to atmospheric air pressure d. the intrapleural pressure becomes more negativearrow_forward
- While a runner rests before a race, the hemoglobin in the blood returning to her heart is 75% saturated with O2 (that is, the blood is carrying about 75% of the maximum possible capacity to carry O2). While she is running, this percentage ... A. decreases because the partial pressure of O2 in her lung alveoli is reduced to below 40 mm Hg. B. decreases because the decreased PO2 in her muscles promotes O2 unloading in those tissues. C. stays the same because hemoglobin is usually 75% saturated with O2. D. increases because her muscles need more O2. E. increases because she is breathing harder.arrow_forwardDuring strenuous exercise, the oxygen-hemoglobin dissociation curve shifts to the right. This rightward shift reflects an increase in the affinity of hemoglobin for oxygen and favors loading of O2 onto hemoglobin in the lungsarrow_forwardIn internal respiration: A. Carbon dioxide moves from alveoli into the capillary. B. Carbon dioxide moves from the capillary into the alveoli C. Carbon dioxide moves from the cells of visceral organs into the capillary. D. Carbon dioxide moves from capillary into cells of visceral organs.arrow_forward
- Which of these statements about the partial pressure of carbon dioxide is true?a. It is higher in the alveoli than in the pulmonary arteries.b. It is higher in the systemic arteries than in the tissues.c. It is higher in the systemic veins than in the systemic arteries.d. It is higher in the pulmonary veins than in the pulmonary arteries.arrow_forwardwhat is the main driver of normal quiet ventilation.. a.the H+ concentration in the arterial blood, which is monitored by central chemoreceptors b.the PO2 of the arterial blood, which is monitored by central chemoreceptors c.the PO2 of the arterial blood, which is monitored by peripheral chemoreceptors d.the H+ concentration in the CSF, which is monitored by central chemoreceptors e.the PCO2 of the arterial blood, which is monitored by peripheral chemoreceptorsarrow_forwardDuring expiration at sea level: a. atmospheric pressure increases b. intrapleural pressure becomes more positive c. lung volume increases d. intrapleural pressure rises above intrapulmonary pressure e. intrapulmonary pressure decreases below atmospheric pressurearrow_forward
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