What is the function of the very small amount of pleural fluid that is found in the pleural space?
a. Composes part of anatomic shunt.
b. Liquid barrier for pathogens.
c. Part of pulmonary blood flow.
d. Reduces friction.
ANS: D
The small volume of pleural fluid is spread out over the entire surface of both lungs and functions as a lubricant to reduce friction as the lungs move within the thorax and as an airtight seal that adheres together the two pleural membranes.
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Which of the following is TRUE with regards to dental treatment for eating disorders?
A) Dental professionals play an essential role in the early identification of eating disorders. B) Fluoride treatments are inappropriate in patients with eating disorders. C) It is illegal for a dentist to discuss eating disorders as part of a review of past medical history. D) Eating disorders are out of the scope of practice of dental professionals and should be ignored if suspected.
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A. October 1, 2014 B. October 1, 2015 C. October 1, 2013 D. January 1, 2015