In asthma, what does the term bronchospasm describe?
ASwelling of the alveolar walls
BConstriction of the bronchioles
CCollapse of the alveolar sacs
DRupture of the capillary bed
Answer & Solution
Correct answer: B. Constriction of the bronchioles
1. Asthma is characterised by inflammation and oedema of the airway plus bronchospasms.
2. A bronchospasm is a constriction of the bronchioles.
3. That constriction inhibits air from entering the lungs, so the second option is correct.
4. Excessive mucus adds to the occlusion but is a separate feature, and alveolar collapse is not the meaning of the term.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 22 "The Respiratory System", section 22.1 Organs and Structures of the Respiratory System_
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