alleryStart learning →What is an interlobular septum in the lung?
AA connective tissue wall between lobules
BA cartilage plate inside a bronchiole
CA fissure that divides one lobe from another
DA serous layer covering the lung surface
Answer & Solution
Correct answer: A. A connective tissue wall between lobules
1. A pulmonary lobule is the subdivision formed as bronchi branch into bronchioles.
2. An interlobular septum is a wall of connective tissue separating lobules from one another.
3. So the first option is correct.
4. Fissures separate lobes rather than lobules, which is the third option's trap, and bronchioles carry no cartilage at all.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 22 "The Respiratory System", section 22.2 The Lungs_
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