Question

multiple choice question
which represents a proper path for incoming air flow?
o intralobular bronchioles to lobar bronchi
o segmental bronchi to lobar bronchi
o terminal bronchioles to intralobular bronchioles
o intralobular bronchioles to terminal bronchioles

Explanation:

In the respiratory system, the proper flow of air is from larger airways to smaller ones. The order of branching in the bronchial tree is: lobar bronchi → segmental bronchi → terminal bronchioles → intralobular bronchioles.

• For the option “intralobular bronchioles to lobar bronchi”: This is incorrect as air flows from larger (lobar bronchi) to smaller (intralobular bronchioles), not the reverse.
• For the option “segmental bronchi to lobar bronchi”: Lobar bronchi branch into segmental bronchi, so air flows from lobar bronchi to segmental bronchi, not the other way around.
• For the option “terminal bronchioles to intralobular bronchioles”: Terminal bronchioles are larger than intralobular bronchioles, and air flows from terminal bronchioles to intralobular bronchioles.
• For the option “intralobular bronchioles to terminal bronchioles”: This is incorrect as air flows from terminal bronchioles (larger) to intralobular bronchioles (smaller).

Answer:

terminal bronchioles to intralobular bronchioles