3. Immune System - ASSIGN PDF

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ASSIGN...

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Assignment#3ImmuneSystem Due:10:00pmonSunday,March6,2016 Tounderstandhowpointsareawarded,readtheGradingPolicyforthisassignment.

ReadingQuizChapter21Question1 PartA Whatconstitutesthebody'sfirstlineofdefenseagainstdisease? ANSWER: intactskinandmucousmembranes inflammation antimicrobialproteinsandvariousphagocyticcells theadaptivedefensesystem

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ChapterTestChapter21Question4 PartA Whichofthefollowingisaroleofinterferons(IFNs)? ANSWER: IFNsstimulateantibodyproductioninresponsetoabacterialinfection. IFNshelpthebodycombatviralinfections. IFNsactivatehelperTcellsbypresentingantigens. IFNsstimulatethereleaseofhistamine.

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ChapterTestChapter21Question5 PartA Whichofthefollowingisaneffectofcomplementactivation? ANSWER: Fever Tissuerepair Tcellactivation Opsonization

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ChapterTestChapter21Question7 PartA Cellularimmunityisattributedtotheactionof: ANSWER: interferons. Tcells. antibodies. complementproteins.

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Chapter21ClinicalApplicationQuestion5

PartA AphysicianordersTylenolforatemperaturegreaterthan101degreesF.Thepatient'stemperatureis100.4F.Whatistherationalefornotmedicatinga feverof100.4F? ANSWER: Amildormoderatefeverinterfereswiththemultiplicationofpathogensandwiththeperson'simmunecells'abilitytofightthepathogen;however, pathogensareaffectedtoagreaterextentthattheimmunesystemcells. Amildormoderatefeverallowsthepersontosweatouttheinfectingagent,thushelpingthebodyrecoverfaster. Amildormoderatefevershouldalsobemedicated,asafeverisnotgoodforthefunctioningofthehumanbody. Amildormoderatefeverisanadaptiveresponsethatseemstobenefitthebody.Bacterianeedlargeamountsofzincandirontomultiply.During fever,theliverandspleensequesterironandzincthatbacterianeedtomultiply.

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Chapter21MultipleChoiceQuestion6

PartA Therednessandheatofaninflamedareaareduetoalocalhyperemiacausedby________. ANSWER:

vasodilation productionofcomplementandinterferon vasoconstriction phagocytemobilization

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Chapter21MultipleChoiceQuestion10

PartA Theprocesswherebyneutrophilsandotherwhitebloodcellsareattractedtoaninflammatorysiteiscalled________. ANSWER: margination phagocytosis diapedesis chemotaxis

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Chapter21MultipleChoiceQuestion27

PartA

Complementproteinsandantibodiescoatamicroorganismandprovidebindingsites,enablingmacrophagesandneutrophilstophagocytizetheorganism. Thisphenomenonistermed________. ANSWER: opsonization agglutination diapedesis chemotaxis

Correct

Chapter21MultipleChoiceQuestion31

PartA Innateimmunesystemdefensesinclude________. ANSWER: phagocytosis plasmacells Bcells Tcells

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Chapter21MultipleChoiceQuestion28

PartA Whichofthefollowingisnotcharacteristicoftheadaptiveimmunesystem? ANSWER: Itissystemic. Itisspecificforagivenorgan. Ithasmemory. Itisantigenspecific.

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Chapter21True/FalseQuestion6

PartA Substancescapableoftriggeringtheadaptiveimmunesystemandprovokinganimmuneresponsearecalledantigens. ANSWER: True False

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ChapterTestChapter21Question8

PartA Tcellsachieveselftoleranceinthe_______. ANSWER: bonemarrow lymphnode thymus tonsils

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ChapterTestChapter21Question10 PartA Choosethetruestatementregardingtheprimaryversusthesecondaryimmuneresponse. ANSWER: Aprimaryresponseresultswhennaïvelymphocytesareactivated,whileasecondaryresponseisaresultofactivatingmemorycells. Aprimaryresponseoccursfasterthanasecondaryresponse. Theantibodiesproducedinaprimaryresponsebindtoantigensmoreefficientlythantheantibodiesproducedinasecondaryimmuneresponse. Aprimaryresponseleadstohigherlevelsofantibodiesthandoesasecondaryresponse.

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Chapter21MultipleChoiceQuestion17

PartA ________determine(s)whatspecificforeignsubstancesouradaptiveimmunesystemwillbeabletorecognizeandresist. ANSWER: Enzymespresentatthetimeoftheinvasion Memorycellproduction Thetypeofantigen Ourgenes

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Chapter21True/FalseQuestion12

PartA Someimmunocompetentcellswillneverbecalledtoserviceinourlifetime. ANSWER: True False

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ChapterTestChapter21Question13 PartA

________arelymphocytesthatdirectlykillvirusinfectedcells. ANSWER: Tcytotoxiccells Macrophages Thelpercells Bcells

Correct

Chapter21MultipleChoiceQuestion8

PartA InclonalselectionofBcells,whichsubstanceisresponsiblefordeterminingwhichcellswilleventuallybecomecloned? ANSWER: antibody antigen interferon complement

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Chapter21MultipleChoiceQuestion24

PartA Bcellsrespondtotheinitialantigenchallengeby________. ANSWER: formingofalargenumberofcellsthatareunliketheoriginalBcell producingprogenycellsthatincludeplasmacellsandmemorycells reducingitssize immediatelyproducingantigenspecificantibodies

Correct ScoreSummary: Yourscoreonthisassignmentis100%. Youreceived18outofapossibletotalof18points....