Question

What is the infectious disease in which a membrane forms, lining the pharynx, and severely obstructs the passage of air into the larynx?

1) Asthma
2) Bronchitis
3) Croup
4) Pneumonia

Answer 1

Diphtheria is the infectious disease that causes a pseudomembrane to obstruct the airways; it is caused by Corynebacterium diphtheriae.

Step-by-step explanation:

The infectious disease in which a pseudomembrane forms, lining the pharynx and severely obstructing the passage of air into the larynx, is called diphtheria. Caused by Corynebacterium diphtheriae, diphtheria is a serious condition where a grayish layer of dead tissue forms over the mucous membranes of the nasal cavity, tonsils, pharynx, and larynx. It can obstruct the airways and potentially lead to suffocation. This membranous formation is due to the production of diphtheria toxin by the bacterium, which is a result of infection with certain toxin-producing strains of the bacterium.