THE HUMAN IMMUNE SYSTEM
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ig D
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Ig M
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Ig A
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Ig E
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Detailed explanation-1: -IgD, which stands for immunoglobulin D, is an immune system protein secreted by plasma cells.
Detailed explanation-2: -Markers of Plasma Cell Function As antibody-secreting cells, plasma cells naturally produce immunoglobulin (Ig) proteins, including IgA, IgM, IgD, and IgG. Naive B cells express mostly IgM and some IgD on their cell surface.
Detailed explanation-3: -IgD functions as a B cell antigen receptor and may participate in B cell maturation, maintenance, activation, and silencing. Although the exact function is still unclear, IgD may be involved in humoral immune responses by regulating B cell selection and homeostasis.
Detailed explanation-4: -Immunoglobulin A (IgA): It’s found in the linings of the respiratory tract and digestive system, as well as in saliva (spit), tears, and breast milk. Immunoglobulin G (IgG): This is the most common antibody. It’s in blood and other body fluids, and protects against bacterial and viral infections.