Correct And Verified Answers 2025
Organsiofitheiimmuneisystemi-iCorrectiAnswer--
iboneimarrow
-ithymus
-ispleen
-ilymphinodes,itonsils,ipeyeripatches
Boneimarrowifunctioniiniimmuneisystemi-
iCorrectiAnswer-
Responsibleiforiproductioniofiimmuneicellsiandithei
maturationiofiBicells
Thymusifunctioniiniimmuneisystemi-iCorrectiAnswer-
Providesisiteiforit-
cellidifferentiation,imaturationiandiselectioni(shrink
siasiweigrow)
Spleenifunctioniiniimmuneisystemi-iCorrectiAnswer-
containsibloodifilledisinusesithatifilteriantigensiandic
ellsifromitheiblood
-iredipulpi(redibloodicellistorageianditurnover)
-iwhiteipulpi(whereiimmuneicelliinteractionioccurs)
-ithoseiw/oispleeniatiincreasediriskiforiinfection
Lymphinodesifunctioniiniimmuneisystemi-
iCorrectiAnswer-
antigensiinteractioniwithiimmuneicells
5itypesiofiimmunityi-
iCorrectiAnswer-1.iNaturali(Innateiresistance)i
2.iActiveiAcquired
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,3.iPassiveiAcquired
4.iHumorali
5.iCell-mediated
NormalifunctioniofiT-lymphocytei-iCorrectiAnswer--
idevelopiintoiseveralisubsetsithatiidentifyiandikillitar
geticelli(t-cytoxic)
-iregulateiimmuneiresponseibyihelpingiclonaliselecti
oniprocessi(t-helper)
-iSuppress/limitiimmuneiresponsei(t-regulatory)
NormalifunctioniofiB-lymphocytei-iCorrectiAnswer-
developiintoiplasmaicellsithatiproduceiantibody
NaturaliImmunityiAKAiinnateiresistanceiimmunityi-
iCorrectiAnswer-
ActiveiAcquirediImmunityi-iCorrectiAnswer-
Producedibyihostiafteriexposureitoianiantigeni(basisi
ofivaccinations)
PassiveiAcquirediImmunityi-iCorrectiAnswer-
acquirediviaitheitransferiofiantibodiesioriT-
cellsitoirecipienti(motheritoifetus,irabies)
HumoraliImmunityi-iCorrectiAnswer-conferredibyiB-
cells;iprovidesiimmunityiagainstisomeiviraliinfection
s,itoxiniinducedidiseasesiandidiseasesicausedibyipneu
mococci/meningicocci/hemophilus
Cell-mediatediImmunityi-iCorrectiAnswer-
conferredibyiT-
cells;iactiveiagainsticellsiinfectediwithiICibacteriaiori
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, virues;iresponsibleiforiorganitransplantationirejectio
n
Antigeni(def)i-iCorrectiAnswer-
describesiaimoleculeithaticanireachiwithibindingisite
sioniantibodiesioriantigenireceptorsioniB&Ticells
Self-antigeni(def)i-iCorrectiAnswer-
partiofiindividual'simakeupithatifulfillsiallicriteriaiEX
CEPTiforeignnessiandidoesinotinormallyielicitiimmun
eiresponse
Allergeni(def)i-iCorrectiAnswer-
Antigenithatiinducesiallergiciresponse
IgAifunctioni-iCorrectiAnswer-
Mainiimmuneiglobuliniinisecretionsiandimucousime
mbranes;ipreventsiattachmentiofimicroorganismsitoi
mucousimembranes
IgMifunctioni-iCorrectiAnswer-
MainiimmuneiglobuliniproducediEARLYiiniprimaryii
mmuneiresponsei(highileveliindicatesirecentiinfectio
n)
IgGifunctioni-iCorrectiAnswer-
Mostiprominent;ibindsiwithiviruses,ibacteriaianditoxi
ns;iactivatesicomplementiandibindsitoimacrophages;i
primaryiantibodyiinisecondaryiimmuneiresponse;ilev
elsiincreaseiiniresponseitoirepeatediexposureitoiantig
en;ionlyioneithaticrossesiplacenta
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