It is easy to see on the outer surface of a smoker's lung hexagons approximately the size of the tip of a little finger and clearly outlined by black lines of carbon. These structures are
A) lobes.
B) bronchopulmonary segments.
C) lobules.
D) bronchioles.

Question

Quizplus · Accepted Answer

The hexagonal structures described on the outer surface of a smoker's lung are the lobules, which are small compartments of lung tissue that contain clusters of alveoli (air sacs). The black lines of carbon are the result of the accumulation of tar and other chemicals from cigarette smoke. The lobes, bronchopulmonary segments, and bronchioles are larger structures within the lungs and would not be visible on the outer surface.

It Is Easy to See on the Outer Surface of a Smoker's