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Retired NBME 21 Answers

nbme21/Block 1/Question#34 (reveal difficulty score)
A 30-year-old man develops urinary ...
Pelvic nerves ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +11  upvote downvote
submitted by โˆ—hungrybox(1277)
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ocemisyhnay tdsoep isth raegt cip ewolb

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eacv  hree is a ioved rfo noitatrulis h/wue-wywv?0s/v/o:cpShUtxotutws.Wam=kb.otNc +2

Based off this pic:

External urinary sphincter: inhibits (via pudendal nerve) Hypogastric nerve: ฮฑ1 receptor โ†’ contracts internal urethral sphincter โ†’ inhibits Pelvic nerves Correct! M3 receptor โ†’ contracts detrusor muscle Pudendal nerve: inhibits (Nictonic receptor) โ†’ contracts external urethral sphincter โ†’ inhibits

+2/- hungrybox(1277)

External urinary sphincter inhibits (via pudendal nerve)

Hypogastric nerve ฮฑ1 receptor โ†’ contracts internal urethral sphincter โ†’ inhibits

Pelvic nerves Correct! M3 receptor โ†’ contracts detrusor muscle

Pudendal nerve: inhibits (Nictonic receptor โ†’ contracts external urethral sphincter โ†’ inhibits

+/- hungrybox(1277)

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 +11  upvote downvote
submitted by โˆ—peridot(115)
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Heer si ym aymmsur fo eth ipe/itrocudev hatt was tdepos:

rehTe aer 3 awtyashp evilonvd ni n:gpeie

  1. lPvcei n. ka(a clevpi alhcpnnics n). dsnse hayecaamriptspt reisfb ot steoudrrl ot aotncrct t;-g-& eseeuzq rddaleb dna e.pe

  2. pcyitroagHs .n ssden yatsethicpm sfbeir ot het ordrstleu ot l,eaxr sa llwe as eth naenlirt crnestiph to ttconcra &g--t; odhl kcba epe

  3. eddlnuaP .n sedsn caostim befirs unred( incscusoo roolc)tn to eht alnexert irtcpnseh to tcacnotr g;-t-& hold kabc eep

In shit quntes,oi teh ttspaeni' eadrlbd si lilngif up os uchm ttha tis' odecfr ot .oewvrfol That mnase rheet si a mrpeolb thwi ncrsaeoi 1 - agdmea to lievpc .n os htta he atnc' euzeqes shi abreldd even nehw ts'i upsre fu.ll

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peridot  To cyilf,ra sthi ocieinrtpds si neamt to og naolg wtih gby@rnh'osux pci iknl nad e@sca'v vdoei lkni +4
lovebug  asthnk a t!lo +


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submitted by โˆ—neonem(630)
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hTe rcsala iimurittcno eecntr is 1 of 3 stmceoonnp fo nitiimuctor relfxe o(hret 2 ear romf nnieopt aiurclert taoofmnri and barcrele ec.trx)o Sacral itcm ctnree = -S24S nilpsa rcod leelv irtlnvaeg mfro vrlnate iethw artmte in teh ePlicv srveen, ensolipebsr fro arldebd irtnctoaonc vai the icignocrhel rseven tkhn(i it tsca on eth M3 tererpco ni eth adldber ?.odrus)rte If ouy selo eesth esnerv (.ie. in vpclie ,ru)tfarce llwi result in owrelfov cneinnt.oinec

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submitted by โˆ—meryen13(48)
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ieclvp -retn;-v&eg sisrnceae idovgni n,eiur 3m ,reorcpte ioapyrpaes critgstcaahthypm -;g&e-evtrn aneisrsce rauriny ortn,netie pcsah,yeimtt taeb 3 dna a1ahlp delnepu dsrr.pcetoa -evnrt&e;-g ton atpr fo ounitci,itrm sit a tcsoima pnntcomoe dna sah a ictnniico ercp.erot

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huszagmc  Eilnbaoargt hiwt a tib meor dheaTl :iet erbdald ecvirsee tnupi ormf htob the oncauoimt hetist(pymac dan yaepatcr)pihtmsa and asoctim asmr of eth rnsuevo .stcs Simayeemthpyt โ€“ aocirhgtsyp vrene 1(T2 โ€“ ).2L It ceauss ilaxerntao fo eht orrtsude ,uecslm omgniport nreiu mhrien.teysaepntottr iaPac โ€“ ecilvp vnere 4(.)2-SS edrInecsa signsal rmfo hsti nreev sacue ocniatnrtco fo hte eturrsdo elms,cu sntiiltaugm itSromtunac.o mciiit โ€“ pndeudal vnree 2(.-S4) tI nenevsatri the raltenex lerahtru hns,pctrie rdogviipn olruvytna tcoornl roev Icitnti.urmoni shit ,uqeotisn eht nma sah a sindteedd b,drlade ichhw I itrteednrpe sa eh" acnt' ierutna eustlp"asnynoo hist(rweeo he ybbplroa lwtu'nod etl ish blradde etg so ul.)..fl โ†’- semse ilek he ahs iutcifldfy nrctogcinta the resodurt cluems to atneiiit iiritoncutm -โ†’ sesui htwi vplcei veens.r +1


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submitted by โˆ—yo(89)
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nilyugirssrp odgo lpaotxniaen adn euicrpt dufno no hsit iest. itsohgemn aglno eht ensil of iiauotrcnnmit refxel a(ak drelbad is ufll nda you psis erxe)lf si enog os hte tfaerfne sbrfie ngrayicr the lsgian thta teh aedldbr si ulfl raet'n .owiknrg htsoe irbesf ear eracrdi in het lcpevi seevrn

p/t:/stosr-tscym/cowblo.rtu//eomycxitc/ppetiiougoietuprwriodgwr/d.n

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yo  if slilt d,ncusfoe a erbett ailonnpxeat cna be fnoud tuai.no. unuotes.ote/:snrrnmp/ehdusonh ijcseb/arltcwg/hh//oerisnntiisat +24
hyoscyamine  i fodnu isht migae to be ephulfl ni eregbenmirm ihchw rsenve do what on hciwh orrptec.e s/ihm/tvpiteJda/gXjlmew:egspucWiof/.ikmy.lraot/xaht. +7


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submitted by โˆ—bbr(58)
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I'm llits ,fcnoeusd ehrew is hist ysgu opblerm inugrcc?o Is htta eh is auenlb ot tnriuae, ro tath he ash orolefvw i?enncietconn Gteitgn lsto in eehst en.srev

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