Podcast
Questions and Answers
Which of the following is NOT a function of the respiratory system?
Which of the following is NOT a function of the respiratory system?
- Regulation of blood H+ concentration
- Formation of speech sounds
- Net uptake of carbon dioxide from the air and removal of oxygen from the blood (correct)
- Trapping of blood clots
- Defense against microbes
Which is TRUE about the pleural sac?
Which is TRUE about the pleural sac?
- It is continuous with the atmosphere and protects the lungs from infection.
- It is a closed sac surrounding each lung and contains a large volume of surfactant.
- It is a closed sac surrounding each lung that contains only a tiny volume of lubricating fluid. (correct)
- It is a closed, air-filled space surrounding both lungs that has a negative pressure compared to atmospheric pressure.
- It is bounded by pleural membranes that are very thin, which allows for abundant gas exchange.
Which structure is NOT part of the "anatomical dead space"?
Which structure is NOT part of the "anatomical dead space"?
- Trachea
- Bronchus
- Bronchiole
- Respiratory bronchiole (correct)
- Terminal bronchiole
What is one function of the type II alveolar cells?
What is one function of the type II alveolar cells?
Type II alveolar cells are among the last cells to mature during fetal development. In babies born prematurely, type II alveolar cells are often not ready to perform their function. Which of the following would be TRUE of these babies?
Type II alveolar cells are among the last cells to mature during fetal development. In babies born prematurely, type II alveolar cells are often not ready to perform their function. Which of the following would be TRUE of these babies?
Which of the following is most responsible for keeping the lung surface and the thoracic wall from separating?
Which of the following is most responsible for keeping the lung surface and the thoracic wall from separating?
During a yoga class, you take a deep breath, then relax and let the breath out slowly. During that exhalation, which of the following statements would NOT be true?
During a yoga class, you take a deep breath, then relax and let the breath out slowly. During that exhalation, which of the following statements would NOT be true?
Which of these causes inhalation/inspiration?
Which of these causes inhalation/inspiration?
Which is normally TRUE about the intrapleural pressure?
Which is normally TRUE about the intrapleural pressure?
The volume of air flowing into the alveoli during inhalation/inspiration is increased when there is an increase in which of these?
The volume of air flowing into the alveoli during inhalation/inspiration is increased when there is an increase in which of these?
Under normal circumstances, which of the following would result from an increase in transpulmonary pressure?
Under normal circumstances, which of the following would result from an increase in transpulmonary pressure?
Which of the following statements regarding pulmonary surfactant is TRUE?
Which of the following statements regarding pulmonary surfactant is TRUE?
Under what condition is lung compliance increased?
Under what condition is lung compliance increased?
Type II alveolar cells are among the last cells to mature during fetal development. In babies born prematurely, type II alveolar cells are often not ready to perform their functions. Which of the following drugs would be most likely to help an infant with immature type II alveolar cells?
Type II alveolar cells are among the last cells to mature during fetal development. In babies born prematurely, type II alveolar cells are often not ready to perform their functions. Which of the following drugs would be most likely to help an infant with immature type II alveolar cells?
Which of the following is a cause of asthma?
Which of the following is a cause of asthma?
Which of the following is TRUE during the initial stage of an asthma attack?
Which of the following is TRUE during the initial stage of an asthma attack?
Which of the following drugs, administered as an aerosol spray, would be most likely to help a patient during an asthmatic attack?
Which of the following drugs, administered as an aerosol spray, would be most likely to help a patient during an asthmatic attack?
During a physical examination, a patient has a resting tidal volume is 550 mL; the average resting respiratory rate is 15 breaths per minute; the total lung capacity is 6,000 mL; and anatomic dead space is 150 mL. The patient's resting alveolar ventilation is
During a physical examination, a patient has a resting tidal volume is 550 mL; the average resting respiratory rate is 15 breaths per minute; the total lung capacity is 6,000 mL; and anatomic dead space is 150 mL. The patient's resting alveolar ventilation is
When lying down, a subject's respiratory rate is 12 breaths per minute, anatomical dead space is 150 mL, and minute ventilation is 7 L/min. Which of these is closest to alveolar ventilation in liters per minute?
When lying down, a subject's respiratory rate is 12 breaths per minute, anatomical dead space is 150 mL, and minute ventilation is 7 L/min. Which of these is closest to alveolar ventilation in liters per minute?
Which of the following statements about the response of arteriolar smooth muscle to changing oxygen partial pressures is TRUE?
Which of the following statements about the response of arteriolar smooth muscle to changing oxygen partial pressures is TRUE?
When you head to bed at night, you bring a glass of tap water with you and set it on the nightstand. Upon waking in the morning, you discover there are tiny gas bubbles along the sides of the container. The best explanation for this is:
When you head to bed at night, you bring a glass of tap water with you and set it on the nightstand. Upon waking in the morning, you discover there are tiny gas bubbles along the sides of the container. The best explanation for this is:
You (a healthy individual) are swimming underwater when you can no longer resist the urge to breathe. This overwhelming urge is probably due to
You (a healthy individual) are swimming underwater when you can no longer resist the urge to breathe. This overwhelming urge is probably due to
You embark on a hiking trip on Mt. Kilimanjaro (altitude = 19,000 ft; Atmospheric air pressure = 379 mmHg). As you ascend, what happens to thein the alveoli?
You embark on a hiking trip on Mt. Kilimanjaro (altitude = 19,000 ft; Atmospheric air pressure = 379 mmHg). As you ascend, what happens to thein the alveoli?
Flashcards are hidden until you start studying
