A body fluid has been collected and IgA antibodies have been detected. Which of the following statements is correct in regard to the fluid?
A) The body fluid is most likely saliva due to the presence of IgA antibodies.
B) The body fluid is most likely lymph that contain B lymphocytes because IgA antibodies are most often attached to B lymphocytes.
C) The body fluid is most likely blood because IgA antibodies are only found in blood.

Question

Quizplus · Accepted Answer

IgA antibodies are predominantly found in mucosal areas such as the gut, respiratory tract, and saliva, as well as in secretions like tears and breast milk, making saliva a likely source when IgA antibodies are detected.

A Body Fluid Has Been Collected and IgA Antibodies Have