Multiple Choice
Pleural effusion is a condition where fluid accumulates in the pleural cavity. Which pressure or pressures would you expect to be most directly impacted by this fluid accumulation?
22. The Respiratory System
Pressure in the Lungs and Pleural Cavity
Back22. The Respiratory System
Pressure in the Lungs and Pleural Cavity
- Multiple ChoiceThe transpulmonary pressure is the difference between the __________ and the __________ pressure.1views
- Multiple ChoiceWhich of the following pressures must remain negative to prevent lung collapse?
- Textbook Question
Cary hyperventilates for several minutes before diving into a swimming pool. After he enters and begins swimming underwater, he blacks out and almost drowns. What caused this to happen?
1views - Multiple ChoiceWhat is the relative pressure in the lungs during inspiration?1views
- Multiple ChoiceWhy is the pressure in the pulmonary circulation lower than in the systemic circulation?1views
- Multiple ChoiceWhich pressure actually keeps the lungs from collapsing?1views
- Textbook Question
The detergent-like substance that keeps the alveoli from collapsing between breaths because it reduces the surface tension of the water film in the alveoli is called:
a. Lecithin
b. Bile
c. Surfactant
d. Reluctant
1views - Textbook Question
What is the significance of
(a) Boyle's law, to the process of respiration?
1views - Textbook Question
Predict what would happen to the tidal volume and inspiratory reserve volume if the phrenic nerves were severed. Which muscles would contract to try to compensate for this?
1views - Textbook Question
Differentiate clearly between minute ventilation and alveolar ventilation rate
Which provides a more accurate measure of ventilatory efficiency, and why?
- Multiple ChoiceWhat is found in the space between the pleural layers?2views
- Multiple ChoiceIn the context of lung physiology, what is the typical state of intrapleural pressure during normal breathing?1views
- Textbook Question
When the diaphragm and external intercostal muscles contract,
(a) Exhalation occurs.
(b) Intrapulmonary pressure increases.
(c) Intrapleural pressure decreases.
(d) The volume of the lungs decreases.
(e) The size of the thoracic cavity increases.
1views - Multiple ChoiceIn the context of pressure changes in the pleural cavity, thoracentesis is most accurately described as a procedure performed to accomplish which of the following in a patient with a collapsed lung (pneumothorax)?