Lymphocytes (A&P)
Adaptive immunity is a result of the actions of: a. NK cells b. T and B cells c. interferons d. mast cells e. antigen antibody complexes
b.
Helper T cells do all the following except: a. secrete cytokines to stimulate production of plasma cells b. destroyed target cells using perforins c.enhance cell mediated immunity d. activate sensitized B cells by con stimulation e. enhance antibody mediated immunity
b.
If the famous shrank and stopped functioning properly we would expect to see an immediate decrease in the number of: a. NK cells b. T cells c. neutrophils d. NK cells and T cells
b.
Lymphocytes are produced and stored in all the following except: a. The thymus b. The brain c. Lymph node origins d. the spleen e. Lymphoid nodules
b.
T is to ____ as B is to _____ a. thyroid; bowl b. thymus dependent; bone marrow derived c. non-thymus dependent; bottom d. top; bottom e. none of the above
b.
The cells directly responsible for cell mediated immunity are the _____ cells a.. plasma b. T c. B d. NK e. interferon
b.
___ are clusters of lymphoid nodules deep to the epithelial lining of the small intestine a. immune complexes b. peyers patches c. tonsils d. adenoids e. lymph glands
b.
a substance that provokes an immune response is called an: a. complement b. antigen c. chemotoxin d. irritant e. thymosin
b.
immunoglobulins that ar found into the surface of B cells and may activate antibody productions are a. igA b. igD c. igE d. igG e. igM
b.
lymph drawing from your right shoulder flows into a. the thoracic duct b. the right lymphatic duct
b.
the primary function of the lymphatic system is a. the production and distribution of plasma protiens b. defending the body against both environmental hazards and internal threats c. circulation of nutrients d. the transport of hormones e. both the transport of hormones and the production and distribution of plasma proteins
b.
Compared to blood capillaries Liympth capillaries exhibit all the following except that they: a. Have no basement membrane b. Are frequently irregular in shape c. Are smaller in diameter d. Are larger in diameter e have walls of endothelial cells that overlap like shingles
c.
Crime scene investigator found that a biological fluid sample contains a large amount of IgA type antibody: this fluid is probably: a. blood b. lymph c. tears d. interstitial e. serum
c.
The first line of cellular defense against pathogens are the a. plasma cells b. NK cells c. phagocytes d. T cells e. b cells
c.
Various types of micro phages are derived from: a.Lymphocytes b. eosinophils c. monoccytes d. basophils e. neutrophils
c.
class II MHC molecules are found only on which of the following? a. red blood cells b. all body cells with a nucleus c. lymphocytes and anitgen-presenting cells d. liver cells and macrophages int he spleen e. granulocytes and microphages
c.
immunoglobulins that attach to and sensitize mast cells and basophils are: a. igA b. igD c. igE d. igG e. igM
c.
leslie has a bad sore throat, and the lymph glands in her neck are swollen, this indicates that : a. the lymph gland is actively producing phagocytes b. lympth is not flowing through these lymph glands c. the affected lymph glands contain in an increased number of lymphocytes d. the lymph gland has increased its secretion of thymosin e. the focus of the infection is the lymph glands.
c.
lymphocytes a. are primarily found in the red bone marrow b. are all actively phagocytic c. respond to antigens d. destory red blood cells e. decrease number during infection
c.
most of the lymph returns to the venous circulation by way of the a. hepatic portal vein b. right lymphatic duct c. thoracic duct d. dural sinus e. cisterna chyli
c.
the cells that preform immunological surveillance are the ___ cells a. helper t b. suppressor T c. NK d. B E. plasma
c.
an inflammatory response is trigged when? a. mast cells release histamine and hereupon b. red blood cells releases pyrogens c. blood flow to an area increases d. T cells release interferon. e. neutrophils phagocytize bacteria
a.
immunoglobulins that are primarily fond in the glandular secretions such as mucus, saliva and tears are a. igA b. igD c. igE d. igG e. igM
a.
Cells that helps regulate the antibody mediated immune responses are the a. NK b. B c. plasma d. cytotoxin T e. helper T
e.
Community that results from antibodies that past the placenta from mother to fetus it's called ________ immunity: a. auto b. naturally acquired active c. passive d. innate e. naturally acquired passive
e.
Defense of the body against a particular pathogen is provided by: a. immunological surveillance b. Fever c. nonspecific community d. skin defenses e. specific community
e.
Examples of physical barriers against pathogens include: a. Epidermal layers b.muscus c. epithelia d. sebaceous glands e. all of the answers are correct
e.
Immunity that is genetically determined and present at birth is called: a. natural passive b. auto c. Active d. passive e. innate
e.
In an experimental situation alright is exposed to a viral antigen to which it makes antibodies. These antibodies are then purified and injected into a human with the same viral disease this is an example of: a. active immunization b. innate immunity c. alloimmunity d. natural immunity e. passive immunity
e.
essay what is MALT. what role does it play in the body defense:
malt is an acronym for mucus associated lymphoid tissue made up of aggressive lymphoid nodules deep in mucosa of the digestive system. they are there to detect and neutralize pathogens to enter the body across the digestive mucosa.
Immunity the results from exposure to an antigens in the environment is called: a. naturally acquired active b. natural acquired passive c. Innate d. Auto e. Passive
a.
Which of these statements about lymph flow in the node is False: a. the afferent lymphatic enters at the hilum b. Lymph enters in an afferent lymphatic c. Lymph flows pass dendritic cells d. the efferent lymphatic exits at the hilum e. Lymph first enters the sub capsular space.
a.
____ cells provide cell -mediated immunity? a. CD8T b. memory B c. cytotoxin T d. supressor T e. CD4T
a.
lymphoid organs differ from lymphoid tissues in what way? a. they are surrounded by fibrous capsule and lymphoid tissues are not . b. they are found in the digestive tract and lymphoid tissues are found in the thorax c. they contain T lymphocytes and lymphoid tissues do not d. they cannot produce antibodies, whereas lymphoid tissues can. e none of the answers are correct.
a.
stem cells that will form t cells develop in the : a. thymus b. spleen c. kidneys d. bone marrow e. liver
a.
the attraction or repulsion of certain cells to chemical in their environment is called a. chemotaxi b. immune surveillance c. diapedesis d. apoptosis e. phagocytosis
a.
the lymphocytes are most important in a. fighting infection b. eliminating variations in the composition of interstitial fluid c. transporting lipids from the digestive tract d. helping maintain normal blood volume e. transporting gases to and away from lymph noddes
a.
the movement of phagocytes through the capillary wall is called : a. diapedesis b. involution c. apoptosis d. chemotaxis e. phagocytosis
a.
the process by which antibodies bind to the antigen on the surface of cells , forming large immune complexes is called: a. agglutination b. sensitization c. opsonization d. antigen presentation e. neutralization
a.
Lymph nodes do all the following except a. detect pathogens b. Produce antibodies c. Monitor the contents of lymph d. remove excess nutrients from the lymph e. remove debris and pathogens from the lymphs
d.
The merging of_______ forms of the right lymphatic duct: a. Two great vessels b. The left jugular the right subclavian and the right bronchomediastinal trucks c. the thoracic and mediastinal duct d. the right jugular , right subclavian, and the right bronchomediastinal truncks e. superior and inferior lymphatic ducts
d.
____ are large lymphoid nodules that are located in the walls of the pharynx a. immune complexes b. spleens c. peyers patches d. tonsils e. lymph nodes
d.
each of the following is a physical barrier to the infection except: a. epithelia b. basement membranes c. body hair d. compliment e. secretions
d.
immunoglobulins that are most abundant and are responsible for resistance against many viruses , bacterial toxins are : a. igA b. igD c. igE d. igG e. igM
d.
inappropriate or excessive immune responses to antigens are a. the result of stress b. signs of a week system c. autoimmune diseases d. allergies e. immunodeficiency diseases
d.
the human immunodeficiency virus (HIV) which causes the disease known as AIDS , selectively infects the a. supresor T b. cytotoxic T c. B d. Helper T e. plasma
d.
the lymphatic system is composed of all the following except: a. the spleen b. lymph nodes c. lymphatic vessels d. the venae cavae e. lymph
d.
the medullary sinus of a lymph node contains ____ lymphocytes and plasma cells: a. NK b. medullary c. Helper T d. B cells e. cytotoxin T
d.
what is perforin? a. a toxin expressed by some pathogens that is capable of damaging healthy cells b. A destructive enzyme secreted by sebaceous glands c. A type of antibody synthesize by B cells d. a protein produced by NK cells e. a type of interferon
d.
In passive immunity, the: a. body receives antibodies produced by an animal b. body is deliberately exposed to an antigen c. immune system attacks normal body cells d. body receives antibodies produced by other humans e. body receive antibodies produced by other humans or the body receives antibodies produced by an animal.
e.
Suppressor t cells act to : a. limit antigen proliferation b. erase memory T cells c. produce antibodies involved in auto immunity d. suppress antigens e. inhibit T and B cell activities
e.
T cells release cytokines to stimulate the activation of a. antibodies b. APC c. immunoglobulins d. plasma cells e. B cells.
e.
When an antigen is bound to a class II MHC protein, it can activate an , ____ cell. a. suppressor T b. NK c. cytotoxin T d. plasma e. CD4T
e.
______ exists when the immune system does not respond to a particular antigen? a. versaility b. hypesensitivity c. allergy d. specificity e. tolerance
e.
a test to measure the antibody level a blood sample is called an a. primary response b. secondary response c. anaphylaxis test d. major histocompatibility complex e. titer
e.
characteristics of specific defenses include a. memory b. specificity c. versatility d. tolerance e. all of he above
e.
cytotoxic T cells attackk target cells by doing what? a. secreting free radicals b. secreting mutant proteins c. secreting organic solvent d. secreting strong acid e. activating genes that trigger apoptosis
e.
immunoglobulins formed of five subunits which are the first antibodies to be produces in response to infection are a. igA b. igD c. igE d. igG e. igM
e.
in responce to tissue damage and infection, circulating proteins called pyrogens a. activate complement b. cause inflammation c. opsonize pathogens d. activate antibodies e. produce a fever
e.
inflammation produces localized: a. redness b. swelling c. pain d. heat e. all of the answers are correct
e.
interferons are released by some macrophages and lymphocytes , but also by cells carrying what pathogen? a. parasites b. prions c. spirochetes d. bacteria e. viruses
e.
nonspecific defenses include: a. phagocytic cells b. inflammation c. interferons d. physical barriers e. all of the answers are correct
e.
the cells responsible for antibody-mediated immunity are the ___ cells? a. suppressor T b. NK c.cytotoxin T d. Helper T e. B
e.
the cells responsible for producing antibody molecules are ____ cells. a. thymus b. liver c. NK d. Helper T e. plasma
e.
the thoracic duct drains lympth from all of the following regions except the: a. left arm and shoulder b. pelvic vicera c. left side of the neck d. left breast e. right breast
e.