Mast cell defenses rely upon:

Question

Quizplus · Accepted Answer

Mast cells play a central role in allergic reactions, which are initiated by the binding of allergens to IgE antibodies on the surface of mast cells. Therefore, the defense mechanism of mast cells relies on the production of IgE antibodies by activated B cells.

Answer: D 
 Macrophages are important for the elimination of pathogens in the body. In addition, they play a role in activating and recruiting other immune cells such as mast cells. Mast cells respond to macrophage signals by releasing inflammatory mediators such as histamine, cytokines, and chemokines, which attract other immune cells to the site of infection.

Mast Cell Defenses Rely Upon