During an allergic reaction, the binding of antigens to IgE antibodies initiates a response, in which chemicals cause the dilation of blood vessels and a host of other physiological changes. Such chemicals are
A. interferons
B. hormones
C. histamines
D. acetylamine
Answer:C
During an allergic reaction, the binding of antigens to IgE antibodies initiates a response, in which chemicals cause the dilation of blood vessels and a host of other physiological changes. Such chemicals are
A. interferons B. hormones C. histamines D. acetylamine