A&P II Chapter 22 Wiley Plus Lymphatic System
The primary response will peak how long after an exposure?
10-17 days
Which of the following is a function of the lymphatic system?
All of these are functions of the lymphatic system
Which of the following induces the production of a specific antibody?
Antigen
Which class of cells includes macrophages, B cells and dendritic cells?
Antigen presenting cells
Genetic recombination generates diversity in what specific part of the immune system?
Antigen receptors
Which anti-microbial substances promote cytolysis, phagocytosis and inflammation?
Complement proteins
Which of the following is a small hormone that can stimulate or inhibit many normal cell functions?
Cytokine
Which of the following is an INCORRECT matching of immune system cells and their functions? Macrophage - process and presentation of foreign antigens to T cells Dendritic cell - processes and presents antigen to T and B cells B cells - process and presents antigen to helper T cells Plasma cell - produces and secretes antibodies All of these are correct matching of the cells and their functions
Dendritic cell - processes and presents antigen to T and B cells
Which of the following intensifies the effect of interferons and promotes the rate of repair?
Fever
Which of the following stimulates an immune response ONLY when it is attached to a larger carrier molecule?
Hapten
Which cells display CD4 proteins and interact with MHC Class II antigens?
Helper T Cells
Which cell must be activated in order to achieve virtually all cell mediated immune responses?
Helper T cells
Which class of antibodies is mainly found in sweat, tears, breast milk and GI secretions?
IgA
Which class of antibodies in the blood and lymph indicates a recent invasion?
IgM
When B and T cells are fully developed and mature, they are described as being
Immunocompetent
Which of the following is NOT an effect of aging on the immune system?
Increased response of T cells to antigens
Which of the following is an effect of stress on the immune system?
Inhibition of the immune system
Which anti-microbial substances reduce viral replication in uninfected cells?
Interferons
Which cytokine released by macrophages acts on the hypothalamus to raise the body temperature during fever?
Interleukin-1
Which of the following C3 activation pathways involves antigen-antibody complexes leading to inflammation, enhancement of phagocytosis and lysis of microbes?
Lectin pathway
What causes lymph from the small intestines to appear white?
Lipids
What is the major difference between lymph and interstitial fluid?
Location
The skeletal muscle and respiratory pumps are used in the
Lymphatic, Immune and Cardiovascular systems
Which of the following cells exists in the greatest variety in the immune system?
Lymphocyte
Which chemical released by cytotoxic T cells fragments DNA?
Lymphotoxin
Which does NOT provide a physical or chemical barrier?
Macrophages
Which of these provides a non-specific second line of defense?
Macrophages
Which of the following is NOT a function of the lymphatic and immune system?
Maintaining water homeostasis in the body
Which of the following is NOT a sign of inflammation?
Mucus production
Which of the following organ systems is NOT aided by the MALT (mucosa-associated lymphatic tissue)?
Muscular system
Which of the following cells is part of the body's second line of defense?
Natural killer cells
Exposure to an infectious agent during your day-to-day activities leads to
Naturally acquired active immunity
Which type of immunity defends against any type of invader?
Nonspecific
Which complement system action makes microbes more susceptible to phagocytosis?
Opsonization
Which of the following is NOT considered an organ of the immune system?
Pancreas
Which of these chemicals do NOT induce vasodilation, increased permeability, and increased fluid flow to an infection site?
Perforin
The ability of an antigen to react specifically with the antibodies or cells it has provoked is called
Reactivity
Which of the following is a function of the spleen?
Removes worn out blood cells
Lack of resistance is also known as:
Susceptibility
To become activated, which of the following requires being bound to a foreign antigen AND simultaneous costimulation?
T cell
The left subclavian vein receives lymph from the
Thoracic duct
In which part of the thymus are T cells thought to die?
Thymic (Hassall's) corpuscles
Which organ produces a hormone that promotes maturation of T cells?
Thymus
Naturally acquired passive immunity is associated with which of the following?
Transfer of IgG from mother to fetus
Which type of allergic reaction is the most common type?
Type I (anaphylactic) reaction
Antigens that induce an allergic reaction are called
allergens
An acute (Type I) allergic response can lead to:
anaphylactic shock
The development of self-tolerance through B cell and T cell inactivation after antigen recognition without the second costimulation signal involves which process?
anergy
Which type of adaptive immunity will result from intravenous injection of immunoglobulins?
artificially acquired passive immunity
Which cells of the immune system are the primary targets of the HIV virus?
helper T cells
What class of disorders, including AIDS and SCID, involves the destruction of B and T cells resulting in the inability of the immune system to protect the body from pathogens?
immunodeficiency diseases
Which cells increase the permeability of blood vessels by releasing histamine?
mast cells
Which type of adaptive immunity will result from mother-to-baby IgA transfer via breast feeding?
naturally acquired passive immunity
