NURS3031 FINAL EXAM.

NURS3031 FINAL EXAM.

genomicsy-yCORRECTyANSWER-
geneymapping;yallowsyforyearlier/betterydiagnosisyofyillnessyonceybabyyisyborn

preimplantationygeneticydiagnosisy-yCORRECTyANSWER--
countsy#yofychromosomesyinyanyembryo
-canyruleyoutychromosomaly#yabnormalities

integratedyprenatalyscreeningy-yCORRECTyANSWER--
testingyforychancesyofybirthydefects
-nuchalytranslucency
-NOTydiagnostic

firstytrimesteryscreeningy-yCORRECTyANSWER--trisomyy21y(downysyndrome)
-trisomyy18
-nuchalytranslucency

noninvasiveyprenatalyscreeningy-yCORRECTyANSWER--trisomyy21y(downysyndrome)
-trisomyy18
-trisomyy13

amniocentesisy-yCORRECTyANSWER--doneywithyayneedleyunderyultrasound
-sampleyofy_________yfluid

chorionicyvillusysamplingy-yCORRECTyANSWER--
testyforybirthydefectsyandygeneticydiseases
-canybeydoneyvaginallyy(throughycervix)yoryabdominallyylikeyamniocentesis

congenitaly-yCORRECTyANSWER-
aydiseaseyoryphysicalyabnormalityypresentyfromybirth

teratogeny-yCORRECTyANSWER-
agents,ysuchyasychemicalsyandyviruses,ythatycanyreachytheyembryoyoryfetusyduringypr
enatalydevelopmentyandycauseyharm

mitosisy-yCORRECTyANSWER-
cellydivisionyresultingyiny2yidenticalydaughterycellsywithytheysamey#yofychromosomes

meiosisy-yCORRECTyANSWER-
cellsyreducedybyyhalfy2x,yresultyisy4yhaploidycellsywithyhalfyasymanyychromosomes;ys
exycells

,gametogenesisy-yCORRECTyANSWER-
processybyywhichygametesyareyproducedythroughytheycombinationyofymeiosisyandyot
herymaturationalychanges

fertilizationy-yCORRECTyANSWER-
processyinysexualyreproductionyinywhichymaleyandyfemaleyreproductiveycellsyjoinytoy
formyaynewycell

conceptiony-yCORRECTyANSWER-
unionyofysingleyovumyandysperm,ymarksybeginningyofypregnancy

24-48yhoursy-yCORRECTyANSWER-howylongyisyanyovumyviableyfor?

48-72yhoursy-yCORRECTyANSWER-howylongyisyspermyviableyfor?

ampullay-yCORRECTyANSWER-whereydoesyfertilizationyoccur?

zonayreactiony-yCORRECTyANSWER-
whenyayspermyfertilizesyanyegg,yanyimpenetrableymembraneycoversytheyeggypreventi
ngyotheryspermyfromypenetrating

10ylunarymonthsy-yCORRECTyANSWER-howymanyylunarymonthsyisypregnancy?

9ymonthsy-yCORRECTyANSWER-howymanyycalendarymonthsyisypregnancy?

40yweeksy-yCORRECTyANSWER-howymanyyweeksyisyaypregnancy?

280ydaysy-yCORRECTyANSWER-howymanyydaysyisyaypregnancy?

2yweeksy-yCORRECTyANSWER-
conceptionyoccursyapproximatelyy____________yafteryLMP

fertilization-3yweeksy-yCORRECTyANSWER-howylongyisytheypre-embryonicyperiod?

3-8yweeksy-yCORRECTyANSWER-howylongyisytheyembryonicyperiod?

9yweeks-birthy-yCORRECTyANSWER-howylongyisytheyfetalyperiod?

pre-embryonicystagey-yCORRECTyANSWER--blastocystyattatchesytoyendometrium
-rapidycellydivisionyinytheyfallopianytubes-uterus-implantation
-ifythereyareyanyythreatsytoytheyzygoteyatythisytime,yimplantationywillynotyoccur
-firsty2yweeksyafteryconception

embryonicystagey-yCORRECTyANSWER--zygoteybeginsytoytakeyayhumanyshape
-organysystemsydevelopybyythenyendyofythisystage
-vulnerableytoyinjury-yteratogens

, -3-8yweeks

fetalystagey-yCORRECTyANSWER--changesylessydramaticythanyotherystages
-systemsyareygrowing,ybecomingymoreycomplete
-lotsyofygrowthyandyrefinement
-9yweeksytoybirth

placenta,yumbilicalycord,yamnioticyfluidy-yCORRECTyANSWER-
whatyareythey3yauxiliaryystructuresythatysustainypregnancyyandypermityprenatalydev
elopment?

amnion,ychoriony-yCORRECTyANSWER-whatyareythey2yfetalymembranes?

increasesy-yCORRECTyANSWER-
amnioticysacy_______________yinyvolumeyasytheypregnancyyprogresses

polyhydramniosy-yCORRECTyANSWER-excessiveyamnioticyfluid

amnioticyfluidy-yCORRECTyANSWER--
fluidywithinytheyamnioticysacythatysurroundsyandyprotectsytheyfetus
-regulatesytemperature
-slightlyyalkaliney(canytestyforyleak)
-allowsysymmetricygrowth
-lungydevelopment
-oralyfluidyandywaste

umbilicalycordy-yCORRECTyANSWER--
aytubeycontainingytheybloodyvesselsyconnectingytheyfetusyandyplacenta
-2yarteriesyaney1yvein
-centrallyylocated

umbilicalyveiny-yCORRECTyANSWER-
deliversyoxygenatedybloodyfromytheyplacentaytoytheyfetus

umbilicalyarteriesy-yCORRECTyANSWER-
carryydeoxygenatedybloodyfromytheyfetusytoytheyplacenta

Wharton'syjellyy-yCORRECTyANSWER-
connectiveytissueysurroundingytheyvesselsyofytheyumbilicalycordytoyprotectycordyfro
mycompression

placentay-yCORRECTyANSWER--
structureythatyallowsyanyembryoytoybeynourishedywithytheymother'sybloodysupply
-oxygen,ynutrients,yandyteratogensycanyallybeydiffusedythroughythisystructure