Maternity Chapter 12 (Conception and Fetal Development) 42 complete solutions

Maternal-
ChildsdChaptersd12:sdConceptionsdandsdPrenatalsdDevelopment
sd


1. Whichsdpartsdofsdthesdmaturesdspermsdcontainssdthesdmalesdchromosomes?

a. Thesdheadsdofsdthesdsperm

b. Thesdmiddlesdportionsdofsdthesdsperm

c. X-bearings d sperm

d. Thesdtailsdofsdthesdsperm:sda.sdThesdheadsdofsdthesdsperm


Thesdheadsdofsdthesdspermsdcontainssdthesdmalesdchromosomessdthatsdwillsdjoinsdthesdchromosomessdofsdthesdovum.sdPgsd202
BsdThesdmiddlesdportionsdofsdthesdspermsdsuppliessdenergysdforsdthesdtail'ssdwhip-likesdaction.
CsdIfsdansdX-bearingsdspermsdfertilizessdthesdovum,sdthesdbabysdwillsdbesdfemale.
DsdThesdtailsdofsdthesdspermsdhelpssdpropelsdthesdspermsdtowardsdthesdovum

2. Asdwoman'ssdcousinsdgavesdbirthsdtosdansdinfantsdwithsdcongenitalsdheartsdanomaly.sd

Thesdwomansdaskssdthesdnursesdwhensdsuchsdanomaliessdoccursdduringsddevelopmen

t.sdWhichsdresponsesdissdmostsdaccurate?

a. Itsddependssdonsdwhatsdcausedsdthesddefect

b. Wesddon'tsdreallysdknowsdwhensdsuchsddefectssdoccur

c. Theysdusuallysdoccursdinsdthesdfirstsd2sdweekssdofsddevelopment

d. Theys d occurs d betweens d thes d thirds d ands d fifths d weekss d ofs d development.:s d d.sdTheysdoccu
r
betweensdthesdthirdsdandsdfifthsdweekssdofsddevelopment.


Bloodsdvesselsdandsdbloodsdformationsdbeginssdinsdthesdthirdsdweek,sdandsdthesdheartsdissddevelopmentallysdcompletesdinsdthesdfifthsdweek.s

, Maternal-
sdChildsdChaptersd12:sdConceptionsdandsdPrenatalsdDevelopment
d Regardless sdofsdthesdcause,sdthesdheartsdissdvulnerablesdduringsdthesdthirdsdtosdfifthsdweeks.sdThesdcardiovascularsdsystemsdissdthe



sd firstsdorgansdsystemsdtosdfunctionsdinsdthesddevelopingsdhuman.sdPgsd206,sd209

3. Whichsdstatementsdrepresentssdansdaccuratesdpatternsdofsdfetalsdgrowthsdandsddevelop

-sdment?

a. Contractionssdofsdthesdheartsdbeginsdbeforesdthesdfoursdchamberssdaresdformed

b. Bonessdbeginsdtosdossifysdwhensdthesdpaddle-

shapedsdarmssdandsdwebbedsdfingerssdappear

c. Meconiumsdandsdurinesdaresdproducedsdwhensdthesdfetussdstartssdswallowingsdamnioti

csdfluid

d. Thesdalveolisdbeginsdproducingsdsurfactantsdwhensdthesdlobessdofsdlungssddeve

lopsdoutgrowths.:sda.sdContractionssdofsdthesdheartsdbeginsdbeforesdthesdfoursdchamberssdaresdformed

, Maternal-
ChildsdChaptersd12:sdConceptionsdandsdPrenatalsdDevelopment
sd

3sdweeks-
Thesdheartsdconsistssdofsdtwosdparallelsdtubessdthatsdfusesdintosdasdsinglesdtube,sdandsditsdbeginssdcontractingsdbeforesdthesdfoursdch
sd



amberssdaresdformed.

8sdweeks-sdThesdbonessdofsdthesdarmssdandsdfingerssdstartsdtosdossifysdaftersdthesdarmssdandsdhandssdaresdformed.


12sdweeks-sdUrinesdissdproducedsdinsdthesdkidneyssdbeforesdthesdformationsdofsdmeconiumsdinsdthesdintestinalsdtractsd(16sdweeks)


24sdweeks-sdThesdalveolisdbeginsdproducingsdsurfactantsdaftersdthesdlobessdofsdthesdlungssdhavesdformed,sdandsdthesdthin-
walledsdalveolisdhavesddeveloped.sdThesdlobessdofsdthesdlungssddevelopsdassdoutgrowthssdatsd6sdweeks.sdPgsd206

4. Onesdofsdthesdassessmentssdperformedsdinsdthesddeliverysdroomsdissdcheckingsdt

hesdumbilicalsdcordsdforsdbloodsdvessels.sdWhichsdfindingsdissdconsideredsdwithinsd

normalsdlimits?

a. Twosdarteriessdandsdonesdvein

b. Twosdarteriessdandsdtwosdveins

c. Twosdveinssdandsdonesdartery

d. Onesd arterysd ands d onesd vein:s d a.sdTwosdarteriessdandsdonesdvein

Thesdumbilicalsdcordsdcontainssdtwosdarteriessdandsdonesdveinsdtosdtransportsdbloodsdbetweensdthesdfetussdandsdthesdplacenta.sdPg.sd21
4.

5. Whichsdmaternal-

fetalsdbenefitsdresultssdfromsdthesdplacentasdattachingsdtosdthesdfun-

, Maternal-
sdChildsdChaptersd12:sdConceptionsdandsdPrenatalsdDevelopment

sd gus?sdSelectsdallsdthatsdapply

a. Optimalsdfetalsdgrowth

b. Optimalsdfetalsdgassdexchange

c. Decreasedsdrisksdofsdfetalsdanomalies

d. Decreasedsdrisksdofsdpostpartumsdhemorrhage

e. Decreasedsdrisksdforsdretainedsdplancentasdaftersdbirth:sda.sdOptimalsdfetalsdgrowth
b.sdOptimalsdfetalsdgassdexchange
d.sdDecreasedsdrisksdofsdpostpartumsdhemorrhage


Thesdfundalsdareasdreferssdtosdthesduppersdportionsdofsdthesduterussdandsdissdthesdbestsdplacesdforsdplacentalsdimplantationsdbecaus
esditsdissdrichlysdsuppliedsdwithsdbloodsdforsdoptimalsdfetalsdnutrition,sdwhichsdpromotessdgrowthsdandsdfetalsdgassdexchange.sdAlso,sdi
mplantationsdinsdthesduppersduterussddecreasessdthesdrisksdforsdpostpartumsdhemorrhagesdbecausesdstrongsdinterlacingsdmusclesdf
iberssdinsdthissdareasdofsdthesduterussdcompresssdthesdopensdvesselssdaftersdthesdplacentasddetaches.sdPgsd204-205