When an antibody-coated antigen is phagocytized, which component of the antibody
molecule must fit into a receptor on the phagocytic cell? – correct answer Fc region
Eosinophils are increased in the circulating blood when a patient has
________________ infection. – correct answer some types of parasitic
Which immunoglobulin (Ig) class is the first to be manifested after antigen exposure? –
correct answer IgM
Tears, saliva and other body secretions typically contain: – correct answer IgA
Functions of an activated T lymphocyte include: – correct answer Proliferation,
differentiation, production of cytokines, development of effector function
The classic complement pathway is activated by: – correct answer immune complex
formation on the surface of a cell
Which of the following proteins are considered acute phase reactants? – correct answer
All of these ?
Enhancement of phagocytosis by the coating of foreign particles with serum proteins is
called: – correct answer Opsonization
Monoclonal antibodies are: – correct answer All of these
A cell-mediated immunodeficiency is suggested if the child has: – correct answer All of
these
The physiologic or cellular consequences of complement activation can include: –
correct answer All of these
The first line of non-specific defense, intact skin, is cut with a piece of glass
contaminated with Staphylococcus aureus, which cellular component of the immune
system quickly responds? – correct answer Neutrophils
Then mature T lymphocytes leave the thymus, their T cell receptors are either CD4+ or
_ – correct answer CD8+ Interferons – correct answer Antiviral proteins secreted by T cells 1 / 2 Which immunoglobulin (Ig) class is produced in the highest concentration (titer) in a secondary (anamnestic) response? – correct answer IgG Which of the following characteristics is representative of C-reactive protein (CRP)? – correct answer All of these An antigenic determinant (or epitope): – correct answer All of these Mechanisms of innate immunity: – correct answer All of these Functions of the complement system include: – correct answer All of these The function of the Immune system is to: – correct answer Both of these are correct Surface markers on lymphocytes can be used to: – correct answer All of these Primary granules, or azurophilic granules, within a neutrophil contain: – correct answer All of these If microorganisms penetrate the first line of defense, a second line of _____________ and __________ components forms the
defense mechanisms that become operational. – correct answer Both of these are
correct
The primary function of an antibody in body defenses is to: – correct answer combine
with antigens
All of the following statements are true about IgM except that – correct answer it is
capable of crossing the placenta
Which immunoglobulin (Ig) mediates some types of hypersensitivity (allergic) reactions?
- correct answer IgE
The complement protein found in all the pathways is: – correct answer C3
Preschool children who are vaccinated against specific microorganisms would be
expected to develop ___ immunity against those microorganisms. –
correct answer artificial active
Cluster Designation (CD) antigens are involved in various lymphocyte functions, which
can include: – correct answer All of these
Cell mediated immunity is moderated by: – correct answer Both B and T lymphocytes
Cytokines: – correct answer All of these