Which of the Following is Not a Defense of the Genitourinary

Question

Which of the following is not a defense of the genitourinary tract?
A) Flushing action of urine
B) Lysozyme
C) IgG
D) Mucus secretions
E) IgA

Accepted Answer

IgG is a type of antibody that circulates in the bloodstream and is not specifically associated with the mucosal surfaces of the genitourinary tract. In contrast, IgA plays a significant role in mucosal immunity, including in the genitourinary tract. The flushing action of urine, lysozyme, and mucus secretions are all mechanisms that help defend the genitourinary tract against infection.