Passive immunity is a type of acquired immunity because ____ies are involved. It
differs from active immunity by the fact that the antibodies are produced in another
in___l or an____l and in___d into the patient to provide immediate protection. The
duration of passive immunization is relatively short, a few d___s to several w___s
compared to ___s for active immunity. There is no internal re____nt of antibodies.
Naturally acquired passive immunity is significant mainly in the survival of the
n_____n. The fetus or infant p_____ly acquires _____es from its mother through
the pl____l b____r and later through br____ f____g.
Antibodies that have been produced in another individual or animal and then
administered to the patient provide a____ly a____d p____ immunity. Currently,
passive immunization is mainly accomplished by injecting the patient with g____a
g____n which has been extracted from the blood of i____e p____s. These
antibodies provide protection for a relatively (short) (long) time.
Immune response is defined as a re____n due to an an____c stimulus
characterized by the formation of humoral a____s or the development of c____r
i_____y or both.
Specific immune responses are concerned with the recognition and ultimate
disposal of f____n s____s and encompass a series of c____r interactions
expressed by the elaboration of specific ____l products. Three general
characteristics that distinguish specific immune responses are sp____ty, h____ty,
The property of the specific immune response that distinguishes one antigen from
another is called _____ty. The products of the immune response will react solely
with the antigenic configuration id_____l or very s_____r to that which initiated the
Heterogeneity is characterized by the induction and interaction of a v____y of new
_____l types specific for the inducing a____. It contributes a fine degree of
homeostatic control with which the host can respond in a highly v_____ and ____c
manner to foreign structures.
Memory is the property that results in proliferation and differentiation of sensitized
cells upon _____nt ex_____e to an immunogen.
Following exposure, antigen removal takes place in how many phases? __.