Which of the Following Is Not True of the Respiratory

question 27

Multiple Choice

Which of the following is not true of the respiratory tract from the medium bronchi to the aveoli?

• A)Proportionally,smooth muscle decreases uniformly.
• B)Lining of the tubes changes from ciliated columnar to simple squamous epithelium in the alveoli.
• C)Resistance to air flow increases due to the increase in cross- sectional diameter.
• D)Cartilage gradually decreases and disappears at the bronchioles.

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Definitions:

Nonaromatic

Compounds that are neither aromatic nor antiaromatic; they do not have delocalized pi electrons in a cyclic, conjugated system.

Anthracene

An aromatic hydrocarbon used in the production of dyes, explosives, and as a scintillator in detection devices.

Aromatic

A type of organic compound that contains one or more planar ring systems with delocalized pi-electron clouds, characterized by enhanced stability and distinctive smell.

Antiaromatic

Compounds that possess conjugated pi electrons in cyclic structures but with destabilization due to unfulfilled criteria for aromatic stability.