Question 1

Which of the following best describes the function of pulmonary ventilation in the respiratory system?

Accepted Answer

Movement of air into and out of the lungs

Question 2

During external respiration, where does the exchange of gases primarily occur?

Accepted Answer

Between the alveoli and the capillaries in the lungs

Question 3

Which structure is NOT part of the respiratory zone?

Accepted Answer

Terminal bronchioles

Question 4

What is the main function of surfactant produced by type II alveolar cells?

Accepted Answer

Reduce surface tension of alveolar fluid

Question 5

Which pressure is always negative during normal breathing and helps keep the lungs inflated?

Accepted Answer

Intrapleural pressure ($$P_{ip})$$

Question 6

According to Boyle’s Law, what happens to the pressure of a gas if the volume of its container increases?

Accepted Answer

Pressure decreases

Question 7

A patient with fibrosis has reduced lung compliance. Which of the following best explains why?

Accepted Answer

Fibrosis decreases the distensibility (stretchiness) of lung tissue

Question 8

Which of the following equations correctly represents the relationship between flow, pressure, and resistance in the airways?

Accepted Answer

$$F = \frac{\Delta P}{R}$$

Question 9

Which of the following would most likely result in a pneumothorax?

Accepted Answer

Puncture wound that admits air into the pleural cavity

Question 10

During inspiration, which of the following events occurs?

Accepted Answer

Intrapulmonary pressure drops below atmospheric pressure

Question 11

Which of the following is a consequence of increased airway resistance?

Accepted Answer

Breathing movements become more strenuous

Question 12

Which of the following is TRUE regarding the right and left lungs?

Accepted Answer

The right lung has three lobes and the left lung has two lobes

Question 13

Which of the following best describes the role of the pleural fluid?

Accepted Answer

It provides lubrication and surface tension to help keep the lungs expanded

Question 14

A premature infant is diagnosed with infant respiratory distress syndrome. What is the most likely cause?

Accepted Answer

Insufficient surfactant production

Question 15

Which of the following structures is responsible for voice production?

Accepted Answer

Vocal folds (true vocal cords)

Question 16

Which of the following changes occurs as airways branch from bronchi to bronchioles?

Accepted Answer

Epithelium changes from pseudostratified columnar to cuboidal

Question 17

Which of the following is a function of the conducting zone of the respiratory system?

Accepted Answer

Conduits to gas exchange sites

Question 18

Which of the following would most likely decrease total lung compliance?

Accepted Answer

Ossification of the costal cartilage

Question 19

Which of the following best explains why resistance in the airways is usually insignificant during normal breathing?

Accepted Answer

Large airway diameters in the first part of the conducting zone

Question 20

A patient is experiencing an acute asthma attack. Which medication would most likely help reduce airway resistance?

Accepted Answer

Epinephrine

Anatomy & Physiology: The Respiratory System (Chapter 22, Part A)

스터디 가이드 - 연습 문제