Although the alveoli become enlarged, elderly people have difficulty expelling used air from the lungs because of:

A. sustained vasoconstriction of the alveolar-capillary vessels.
B. decreased alveolar tension secondary to increased surfactant.
C. frequent consolidation of infectious material in the alveoli.
D. decreased alveolar elasticity secondary to decreased surfactant.


Answer: D. decreased alveolar elasticity secondary to decreased surfactant.

Health Professions

You might also like to view...

During an on-camera interview, you should:

a. always look directly into the camera. b. look at the reporter only if a reporter is present. c. look at the reporter, or the place where a reporter would stand if none is present. d. look to the left of the camera.

Health Professions

In which direction should the anode be placed for an AP projection of the femur?

What will be an ideal response?

Health Professions

A pleural effusion that consists of air in the pleural cavity is also called a(n) ________. 

Fill in the blank(s) with the appropriate word(s).

Health Professions

To evaluate image quality, the radiographer must apply knowledge of the interplay of exposure factors including proper milliamperage (mA), time, kilovoltage (kVp), and _____________

Fill in the blank(s) with correct word

Health Professions