What Are the Smallest (And Most Distal) Structures That Remain

question 30

Multiple Choice

What are the smallest (and most distal) structures that remain a component of the conducting zone in the respiratory tract?

• A) respiratory bronchioles
• B) secondary bronchi
• C) tertiary bronchioles
• D) bronchi
• E) terminal bronchioles

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Definitions:

Emphysema

A chronic respiratory disease characterized by damage to the air sacs in the lungs, leading to breathlessness.

Nicotine Patch

A transdermal patch that releases nicotine into the body through the skin, used as an aid to help quit smoking by reducing withdrawal symptoms.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.

Stimulus For Breathing

Factors that trigger the respiratory center in the brain, causing inhalation and exhalation, such as increased carbon dioxide levels in the blood.