Essentials of Human Anatomy & Physiology (12th Edition)
12th Edition
ISBN: 9780134395326
Author: Elaine N. Marieb, Suzanne M. Keller
Publisher: PEARSON
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Chapter 13, Problem 22SAE
Name two chemical factors that modify respiratory rate and depth. Which is usually more important?
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Draw and label the following graphs:
a) Graph the effect of ventilation on arterial PCO2.
b) Graph the effect of ventilation on arterial PO2.
c) Graph the changes in PO2 in the trachea during one respiratory cycle. The Y-axis should
include accurate numerical values.
Which of the following factors would NOT increase the rate of diffusion of oxygen through the respiratory membrane?
A) Increasing the SA/V ratio
B) Increasing the partial pressures
C) Decreasing the surface area
D) Decreasing the thickness of the membrane
E) Decreasing the distance the gas has to diffuse
Match the following statements about ventilation and respiration with whether it is true or false
A)intrapulmonary pressure must be higher than atmospheric pressure in order to inhale
B)as the volume of a vessel increases, the pressure decreases
C)the presence of a thin layer of fluid between the parietal and visceral pleura allows us to increase the size of our lungs
D)exhaling is an active process requiring muscle contraction
E)elastic recoil decreases the volume of the lungs
Chapter 13 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
Ch. 13 - More than one choice may apply. When you exhale,...Ch. 13 - Prob. 2MCCh. 13 - Prob. 3MCCh. 13 - Prob. 4MCCh. 13 - Prob. 5MCCh. 13 - Prob. 6MCCh. 13 - Prob. 7MCCh. 13 - 8. Clearly explain the difference between external...Ch. 13 - Prob. 9SAECh. 13 - 10. Why is it important that the trachea be...
Ch. 13 - Where in the respiratory tract is the air...Ch. 13 - Prob. 12SAECh. 13 - Prob. 13SAECh. 13 - 14. What is it about the structure of the alveoli...Ch. 13 - Prob. 15SAECh. 13 - Name several nonrespiratory air movements, and...Ch. 13 - Prob. 17SAECh. 13 - What is the major way that oxygen is transported...Ch. 13 - Prob. 19SAECh. 13 - Prob. 20SAECh. 13 - Prob. 21SAECh. 13 - Name two chemical factors that modify respiratory...Ch. 13 - Define hyperventilation. If you hyperventilate, do...Ch. 13 - 24. Compare and contrast the signs and symptoms of...Ch. 13 - Prob. 25SAECh. 13 - Prob. 26CTCh. 13 - Why doesn’t Laney have to worry when her...Ch. 13 - 28. Mr. Alvarez bumped a bee’s nest while making...Ch. 13 - Prob. 29CTCh. 13 - Prob. 30CTCh. 13 - Prob. 31CT
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- What are some advantages of gas exchange in air over gas exchange in water?arrow_forwardHow do nerve impulses from the brain regulate ventilation of the lungs? How are the rate and depth of breathing controlled?arrow_forwardDescribe the relationship between the partial pressure of oxygen and the binding of oxygen to hemoglobin.arrow_forward
- Which of the following is a normal characteristic of the respiratory membrane? A) The thickness of the respiratory membrane is not important in the efficiency of gas exchange. B) 0.5 to 1 micrometer thick c) at least 3 micrometer thickarrow_forwardThe alveoli and blood capillaries make up the gas exchange surface of the lungs, and as the arrows in the diagram (Figure 3) illustrate, this is where oxygen and carbon dioxide move in a particular direction. a) With reference to simple diffusion, explain why oxygen and carbon dioxide move in the directions illustrated by the arrows. b) The gas exchange surface is specifically adapted to maximise the transport of oxygen and carbon dioxide in these illustrated directions. Explain at least three of these adaptations.arrow_forwardWhich of the following is TRUE of airway resistance in the respiratory system? O a) Resistance increases with increasing lung volume b) Resistance decreases with increasing lung volume Oc) Resistance decreases when bronchi are exposed to acetylcholine d) Resistance increases when bronchi are exposed to norepinephrinearrow_forward
- Explain the phrase, “breathing by using negative pressure” ( How do we breath using the process of Negative Pressure breathing)?arrow_forwardDuring normal tidal volume breathing, we expend work/energy during A)expiration only B)inspiration only C)during both inspiration and expiration D)we never expend work/energy during tidal volume breathing The forced vital capacity is influenced by all of the following EXCEPT A)lung size B)airway resistance C)elastic properties of the lung D)abdominal muscles E)the partial pressure of oxygen in mm Hg.arrow_forward54) 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.arrow_forward
- Which of the following is the respiratory membrane composed of? A) atria and alveolar sacs B) alveolar and capillary walls and their fused basement membranes C) respiratory bronchioles and alveolar ducts D) respiratory bronchioles and alveolar sacsarrow_forwardWhich statement correctly explains why respiration rate elevates with exercise as compared to at rest. A) oxygen from the blood diffuses into the alveoli for expulsion through exhalation at a faster rate inguinal nodes B) oxygen from the alveoli diffuses into the capillaries for expulsion through exhalation at a faster rate C) carbon dioxide from the alveoli diffuses into the capillaries for expulsion through exhalation at a faster rate D) carbon dioxide from the blood diffuses into the alveoli for expulsion through exhalation at a faster ratearrow_forwardDiscuss the Respiratory quotientarrow_forward
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