Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 39, Problem 10RQ
How would paralysis of the diaphragm alter inspiration?
- It would prevent contraction of the intercostal muscles
- It would prevent inhalation because the intrapleural pressure would not change
- It would decrease the intrapleural pressure and allow more air to enter the lungs
- It would slow expiration because the lung would not relax.
Expert Solution & Answer
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Students have asked these similar questions
Which of the following muscles are active during inspiration at rest?
Diaphragm
Internal intercostals
External intercostals
Both a and c
None of the above
What is the immediate result of the diaphragm contracting?
Transpulmonary pressure decreases
Alveolar volume decreases
Intra-pleural volume decreases
Intra-pleural volume increases
Intra-pleural pressure increases
What allows the thoracic cavity to increase in volume during normal inspiration?
Contraction of the diaphragm upward and the external intercostal muscles lifting the ribs downward.
O Contraction of the diaphragm downward and the external intercostal muscles lifting the ribs upward.
O Relaxing of the diaphragm downward and the external intercostal muscles lifting the ribs upward.
O Relaxing of the diaphragm upward and the external intercostal muscles lifting the ribs downward.
You are having a conversation with a friend. Before you starting a very long
sentence you take a deep breath. What group of respiratory muscles are you
using as you begin speaking?
O Inspiratory Muscles, to counteract elastic recoil
Inspiratory Muscles, to help elastic recoil
O Expiratory Muscles, to counteract recoil
Expiratory Muscles, to help elastic recoil
O You aren't using any muscles, you're relying on elastic recoil alone
Chapter 39 Solutions
Biology 2e
Ch. 39 - Figure 39.7 Which of the following statements...Ch. 39 - Figure 39.13 Which of the following statements is...Ch. 39 - Figure 39.20 The kidneys are responsible for...Ch. 39 - The respiratory system. provides body tissues with...Ch. 39 - Air is warmed and humidified in the nasal...Ch. 39 - Which is the order of airflow during inhalation?...Ch. 39 - The inspiratory reserve volume measures the...Ch. 39 - Of the following, which does not explain why the...Ch. 39 - The total lung capacity is calculated using which...Ch. 39 - How would paralysis of the diaphragm alter...
Ch. 39 - Restrictive airway diseases. increase the...Ch. 39 - Alveolar ventilation remains constant when...Ch. 39 - Which of the following will NOT facilitate the...Ch. 39 - The majority of carbon dioxide in the blood is...Ch. 39 - The majority of oxygen in the blood is transported...Ch. 39 - Describe the function of these terms and describe...Ch. 39 - How does the structure of alveoli maximize gas...Ch. 39 - What does FEV1/FVC measure? What factors may...Ch. 39 - What is the reason for having residual volume in...Ch. 39 - How can a decrease in the percent of oxygen in the...Ch. 39 - If a patient has increased resistance in his or...Ch. 39 - How would increased airway resistance affect...Ch. 39 - Explain how a puncture to the thoracic cavity...Ch. 39 - When someone is standing, gravity stretches the...Ch. 39 - What would happen if no carbonic anhydrase were...Ch. 39 - How does the administration of 100 percent oxygen...
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Similar questions
- Underwater, we humans cant compete with whales and other air-breathing marine mammals, which can stay submerged for extended periods. At the beach one day you meet a surfer who tells you that special training could allow her to swim underwater without breathing for an entire hour. From what you know of respiratory physiology, explain why she is mistaken.arrow_forwardWhich of the following is not a true statement? Group of answer choices When the diaphragm relaxes, it returns to a domelike shape. When the diaphragm contracts, it pulls the floor of the thoracic cavity downward. Changes in thorax size bring about inspiration and expiration. Raising the ribs decreases the depth and width of the thorax.arrow_forwardWhat is the main method of inspiration? Diaphragm contraction External interossei contraction Scalene contraction Upper trapezius contractionarrow_forward
- Which of the following actions describes movement of diaphragm during exhalation? Group of answer choices relaxes and moves up contracts then moves up contracts then moves down relaxes and moves downarrow_forwardThe reason the elasticity and surface tension of the lungs do not cause the lungs to collapse between exhalation and inhalation is because the intrapulmonary pressure is higher than the atmospheric pressure the intrapleural pressure is less than the intrapulmonary pressure the intrapulmonary pressure is less than the atmospheric pressure the intrapleural pressure is greater than the atmospheric pressure more than one of the abovearrow_forwardTo prevent aspiration of food, the extrinsic muscles lift the larynx effectively closing the vestibular folds O glottis epiglottis O all of the abovearrow_forward
- helparrow_forwardDuring inhalation: The diaphragm contracts and the external intercostals contract making the volume of the thoracic cavity larger. The diaphragm and the external intercostals relax making the volume of the thoracic cavity larger The diaphragm relaxes and the external intercostals contract making the volume of the thoracic cavity smaller The diaphragm relaxes and the internal intercostals contract making the volume of the thoracic cavity smallerarrow_forwardShawn is a 43-year-old man who lives in the Midwest and is highly allergic to dust and pollen and has a history of mild asthma. Shawn's girlfriend drove him to the emergency room when his wheezing was unresponsive to his fluticasone/salmeterol (Advair) inhaler. Shawn was unable to lie down and began to use accessory muscles to breathe. Shawn is immediately started on 4 L oxygen by nasal cannula and intravenous (IV) D5W at 75 mL/hr. A set of arterial blood gases is sent to the laboratory. Shawn appears anxious and says that he is short of breath. Vital signs (VS) BP = 152/84 HR = 124 bpm RR = 42 Temp = 100.40F Arterial Blood Gases (ABGs) pH = 7.31 PaCO2 = 48 HCO3 = 26 PaO2 = 55 What may be causing (etiology) Shawn to have an exacerbation of asthma?arrow_forward
- Shawn is a 43-year-old man who lives in the Midwest and is highly allergic to dust and pollen and has a history of mild asthma. Shawn's girlfriend drove him to the emergency room when his wheezing was unresponsive to his fluticasone/salmeterol (Advair) inhaler. Shawn was unable to lie down and began to use accessory muscles to breathe. Shawn is immediately started on 4 L oxygen by nasal cannula and intravenous (IV) D5W at 75 mL/hr. A set of arterial blood gases is sent to the laboratory. Shawn appears anxious and says that he is short of breath. Vital signs (VS) BP = 152/84 HR = 124 bpm RR = 42 Temp = 100.40F Arterial Blood Gases (ABGs) pH = 7.31 PaCO2 = 48 HCO3 = 26 PaO2 = 55 What type of asthma do you think Shawn has? Why?arrow_forwardShawn is a 43-year-old man who lives in the Midwest and is highly allergic to dust and pollen, and has a history of mild asthma. Shawn's girlfriend drove him to the emergency room when his wheezing was unresponsive to his fluticasone/salmeterol (Advair) inhaler. Shawn was unable to lie down and began to use accessory muscles to breathe. Shawn is immediately started on 4 L oxygen by nasal cannula and intravenous (IV) D5W at 75 mL/hr. A set of arterial blood gases is sent to the laboratory. Shawn appears anxious and says that he is short of breath. Vital signs (VS) BP = 152/84 HR = 124 bpm RR = 42 Temp = 100.40F Arterial Blood Gases (ABGs) pH = 7.31 PaCO2 = 48 HCO3 = 26 PaO2 = 55 1)Do you have any concerns with the numbers above (VS & ABG’s in the case study)?arrow_forwardAir rushes into the lungs of humans during inhalation because O pulmonary muscles contract and pull on the outer surface of the lungs. O smooth muscle lining the trachea, bronchi and bronchioles contracts and causes their volume to increase. pressure in the alveoli increases. O the volume of the thoracic cavity increases. O the diaphragm contracts and pushes upward on the chest cavity. MacBook Air 888 F5 F6 F7 F2 F3 F4 @ #3 $ & 4 5 6. 8. W R Y F G J K C V M ommandarrow_forward
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