Surfactant is made by ____________, and the greater the surface density of surfactant molecules at the air-water interface, the __________ the surface tension.

Regional hypoxia in the lung causes pulmonary arterioles and venules to:

The body is able to respond to a sustained metabolic acidosis by producing a compensatory:

In the accompanying Figure 1, the point at pH 7.4/24 mM HCO3− represents the starting condition. Which letter most closely represents uncompensated respiratory alkalosis?   

What percentage of pulmonary surfactant is comprised specifically of the four surfactant apoproteins?

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One of the major roles of the dorsal respiratory group is to:

In the accompanying Figure 4, which panel most closely illustrates the profile of PCO2 along the pulmonary capillary?   

If the pulmonary diffusing capacity for carbon monoxide (DLCO) remains constant but the cardiac output (Q˙) decreases by half:

Which of the following is/are defined as primary lung volumes?