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Chapter 39: Q.22 (page 1147)

How would increased airway resistance affect intrapleural pressure during inhalation?

Short Answer

Expert verified

Increased resistance in the airways (bronchi) can lead to airway compression.

Step by step solution

01

Step 1. Introduction 

Intrapleural pressure refers to the pressure within the pleural cavity. Normally, the pressure within the pleural cavity is slightly less than the atmospheric pressure, which is known as negative pressure.

02

Step 2. Explanation 

Increased airway resistance affects the volume and the pressure inside the lung; therefore, the intrapleural pressure would be less negative and breathing would be more difficult.

During inspiration, the diaphragm and the inspiratory intercostal muscles actively contract, leading to the expansion of the thorax. The intrapleural pressure becomes more subatmospheric or more negative.

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Most popular questions from this chapter

The total lung capacity is calculated using which of the following formulas?

a. residual volume + tidal volume + inspiratory reserve volume

b. residual volume + expiratory reserve volume + inspiratory reserve volume

c. expiratory reserve volume + tidal volume + inspiratory reserve volume

d. residual volume + expiratory reserve volume + tidal volume + inspiratory reserve volume

Which form of reproduction is useful to an animal with little mobility that reproduces sexually? a. fission b. budding c. parthenogenesis d. hermaphroditism

What is the reason for having residual volume in the lung?

Which is the order of airflow during inhalation?

a. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli

b. nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli

c. nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli

d. nasal cavity, trachea, larynx, bronchioles, bronchi, alveoli

What would happen if no carbonic anhydrase were present in red blood cells?
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