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Unformatted text preview: hagocytize bacteria and other foreign
particles Eosinophils – Attack and destroy foreign particles that have
been coated with antibodies of the IgE class
been Fig. 66-1. Maturation of blood cells.
With the exception of platelets and erythrocytes, all of the mature blood cells shown participate in immune
responses. However, only cells of lymphoid origin (cytolytic T cells, helper T cells, B cells) possess receptors
that can recognize specific antigens. (CFU = colony–forming unit.) 1Monocytes that have moved into tissues are
called macrophages.2Basophils that have moved into tissues are called mast cells. Antibodies
– Gamma globulins Family of structurally related glycoproteins
Mediate humoral immunity
Recognize and bind with specific antigens
Produced by B lymphocytes
Five classes of antibodies
– IgA, IgD, IgE, IgG, and IgM Antigens
Molecules that induce specific immune
May trigger production of antibodies or
cytotoxic T cells, or both
Antibodies recognize and bind selected
small portions of the antigen
More than one antibody can bind to the
Purpose is to protect...
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- Spring '14