Chapter 22 Test Questions

The primary response will peak how many days after an exposure?

10-17 days

Which cytokine released by macrophages acts on the hypothalamus to raise the body temperature during fever? a) Interleukin-1 b) Interleukin-2 c) Interleukin-4 d) Gamma interferon e) Perforin

A) Interleukin-1

Which of these does NOT provide a physical or chemical barrier? a) Macrophages b) Saliva c) Urine d) Mucus e) Stratified squamous epithelium

A) Macrophages

Which of these provides a non-specific cellular disease resistance mechanism? a) Macrophages b) T lymphocytes c) B lymphocytes d) Memory B cells e) Stratified squamous epithelium

A) Macrophages

Which type of immunity defends against an type of invader? a) Nonspecific b) Specific c) Cell mediated d) Antibody mediated immunity e) None of these choices

A) Nonspecific

Which action makes microbes more susceptible to phagocytosis? a) Opsonization b) Cytolysis c) Inflammation d) Complement e) Hybridoma

A) Opsonization

Which of the following is a function of the spleen? a) Removes worn out blood cells b) Circulates lymph c) Cleanses interstitial fluid d) Cleanses lymph e) Traps microbes with mucus

A) Removes worn out blood cells

Natural exposure to an infectious agent leads to

Active immunity

Antigens that induce an allergic reaction are called

Allergen

An acute allergic response can lead to

Anaphylactic shock

Which class of cells includes macrophages, B cells and dendritic cells

Antigen presenting cells

Which type of adaptive immunity will result from the intravenous injection of immunoglobulins?

Artificially acquired passive immunity

Which of the following induces the production of a specific antibody? a) Phagocytosis b) Antigen c) Antibody d) Defensin e) Immunoglobulin

B) Antigen

Which cells display CD4 proteins and interact with MHC Class II antigens? a) Cytotoxic T cells b) Helper T Cells c) Memory T cells d) MHC antigens e) B cells

B) Helper T Cells

Which class of antibodies is mainly found in sweat, tears, breast milk and GI secretions? a) IgG b) IgA c) IgM d) IgD e) IgE

B) IgA

Which of the following is NOT a function of the lymphatic and immune system? a) Draining excess interstitial fluid b) Maintaining water homeostasis in the body c) Transporting dietary lipids d) Carrying out immune responses

B) Maintaining water homeostasis in the body

To become activated, which of the following requires being bound to a foreign antigen AND simultaneous costimulation? a) B Cell b) T Cell c) Interferon d) MHC antigen e) Antigen presenting cell

B) T cell

Which anti-microbial substances promote cytolysis, phagocytosis, and inflammation? a) Transferrins b) Perforins c) Complement proteins d) Defensins e) Interferons

C) Complement Proteins

Which of the following is a small hormone that can stimulate or inhibit many normal cell functions? a) Enzyme b) Kinins c) Cytokine d) MHC e) Leukocyte

C) Cytokine

Which of the following intensifies the effect of interferons and promotes the rate of repair? a) Complement proteins b) Perforins c) Fever d) Macrophages e) Natural killer cells

C) Fever

Which of the following stimulates an immune response ONLY when it is attached to a large carrier molecule a) Epitope b) Antigen c) Hapten d) MHC antigen e) CD8

C) Hapten

Which class of antibodies indicates a recent invasion? a) IgA b) IbE c) IgM d) IgD e) IgG

C) IgM

What is the major difference between lymph and interstitial fluid? a) Composition of electrolytes b) White blood cells are present in lymph c) Location d) Types of proteins present e) Red blood cells are present in interstitial fluid

C) Location

Which of the following organ systems is NOT aided by MALT (mucosa associated lymphatic tissue) a) Respiratory b) Digestive c) Muscular d) Urinary e) Reproductive

C) Muscular

Which chemical does NOT induce vasodilation and permeability (increased fluid flow) to an infection site? a) Histamines b) Kinins c) Perforin d) Leukotrienes e) Complement

C) Perforin

Which cell is considered to be the most important cell in the immune system? a) Cytotoxic T cells b) B lymphocytes c) T helper cells d) Eosinophils e) Macrophages

C) T helper cells

Which of the following is a function of the lymphatic system? a) Drain excessive interstitial fluid b) Transport dietary lipids c) Carry out immune responses d) All of these are functions of the lymphatic system e) None of these are functions of the lymphatic system

D) All of these are functions of the lymphatic system

Which of the following is an inactive, self responsive cell? a) Deleted cell b) Hybridoma Cell c) Epitopic Cell d) Anergy Cell e) Natural Killer Cell

D) Anergy cell

Which of the following leads to inflammation, enhancement of phagocytosis and lysis of microbes? a) Classical complement system b) Alternative complement system c) Apoptosis d) Classical and Alternative complement systems e) Hapten activation

D) Classical and Alternative complement systems

Which of the following is NOT an effect of aging on the immune system? a) Increased susceptibility to infections b) Increased susceptibility to malignancies c) Deceased response to vaccines d) Increased response of T cells to antigens e) Decreased production of antibodies

D) Increased response of T cells to antigens

Which of the following is an effect of stress on the immune system? a) Increased activity of T lymphocytes b) Increased activity of B lymphocytes c) Activation of the immune system d) Inhibition of the immune system e) Increased production of antibodies

D) Inhibition of the immune system

Which of the following cells is the most variable cell in the immune system? a) Natural killer cell b) Monocyte c) RBC d) Lymphocyte e) Machrophage

D) Lymphocyte

Which T cell toxin fragments DNA? a) Perforin b) Tumor antigen c) Interferons d) Lymphotoxin e) Toxin T

D) Lymphotoxin

Which of the following is NOT a sign of inflammation? a) Redness b) Pain c) Heat d) Mucus production e) Swelling

D) Mucus Production

Which of the following cells is part of the body's second line of defense? a) Mucous cells b) Germ cells c) B and T lymphocytes d) Natural Killer Cells e) None of these choices

D) Natural killer cels

The left subclavian vein receives lymph from the a) left axillary vein b) lumbar trunk c) jugular trunk d) thoracic duct e) right lymphatic duct

D) Thoracic Duct

In which part of the thymus are T cells thought to die? a) Capsule b) Trabeculae c) Epithelial Cells d) Thymic (hassall's) corpsucles e) T cells do not die in the thymus

D) Thymic (Hassall's) Corpsucles

Which organ produces a hormone that promotes maturation of T cells? a) Spleen b) lymph node c) Red bone marrow d) Thymus e) Pancreas

D) Thymus

Natural passive immunity is associated with which of the following? a) Vaccination b) Exposure to microbe resulting in antibody formation c) Receiving booster shots d) Transfer of IgG from mother to fetus e) Intravenous injection of antibodies

D) Transfer of IgG from mother to fetus

Which of the following is an incorrect matching of immune system cells and their functions? a) Macrophage-process and presentation of foreign antigens to T cells b) Dendritic cell-processes and presents antigen to T and B cells c) B cells-process and presents antigen to helper T cells d) Plasma cell-produces and secretes antibodies e) All of these are correct matching of the cells and their functions

E) All of these are correct matching of the cells and their functions

Which anti-microbial substances reduce viral replication (in uninfected cells)? a) Transferrins b) Perforins c) Complement proteins d) Defensins e) Interferons

E) Interferons

Which of the following is not considered an organ of the immune system? a) Spleen b) Lymph node c) Red bone marrow d) Thymus e) Pancreas

E) Pancreas

Which cells of the immune system are the primary targets of the HIV virus?

Helper T cells

When B and T cells are fully developed and mature, they are described as being

Immunocompetent

The inability of the immune system to protect the body from a pathogen causes

Immunodeficiency diseases

What causes lymph from the small intestines to appear white?

Lipids

The skeletal muscle and respiratory pumps are used in what 3 systems

Lymphatic, Immune and Cardiovascular Systems

Genetic recombination generates diversity in what part(s) of the immune system? a) Antigen receptors b) Hapten c) MHC antigen d) MHC antigen and antigen receptors e) Epitopes

MHC antigen and antigen receptors

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

The ability of an antigen to react specifically with the antibodies or cells it has provoked is called

Reactivity

Lack of resistance is also known as:

Susceptibility

Which type of allergic reaction is the most common type?

Type 1 (anaphylactic) reaction