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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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naosyhiecmy epodst itsh tgrae pci bloew

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eacv  eher is a dievo ofr arusontiitl //ytwmwaU/.chkvSwvwp?ocWeuu-Nhtb:sx0oto.=st +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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eeHr is ym mmasury fo eth redu/iiteopcv htta asw eopt:sd

Tehre are 3 aaystphw vdnlvieo ni :gneeip

  1. cvilPe n. (aak ilpvec naslpcnihc n.) ndses aaayrptitmcpshe sfeibr ot lrdoruets ot ocnratct gt;&-- eusqeze eradbdl nad e.pe

  2. rtHpyaoigcs n. ssnde hipytsctaem efibsr to teh edrurlsto to a,rxel as ewll sa eht rlnaiten ncrhipste to naoctctr -gt;&- odhl kabc pee

  3. nudeaPld .n sensd ostmcia bfiesr (ednru usnocciso noloct)r to eth enteaxrl hnisptcre to notaccrt g-&t-; dhlo ackb eep

In sith ,equotins hte 'pestntai edadbrl is linflgi pu so chum atth sti' oferdc ot folv.ewor Taht smnae eetrh is a pmlobre itwh rcnsaioe 1 - aeadgm ot celipv n. os ttha eh c'atn seqeuez shi leaddrb neev hwen s'it reups ful.l

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peridot  To flc,yira tish toniprcdise si tnaem ot og ongla whti @onrbyuh'gxs cip inkl and vec'as@ doevi iknl +4
lovebug  ktsnah a !tol +


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 +3  upvote downvote
submitted by โˆ—neonem(630)
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eTh raslac itrcnioiutm tcerne si 1 of 3 noocemtpsn fo ritimunocit feexrl teho(r 2 ear fmro petnnio tiareclru rftmoaino dna elrebrac ecxo)t.r Salcar cimt ceetrn = -S4S2 anslpi odcr velel vgierntla ofrm vtrlane iwthe tarmet ni the cvPeil nsvree, pseloinresb rof ledbrda otcnitoanrc iav the lcinciorehg snrvee tnk(ih ti scat on het M3 ocrerpte in the bdardle te?u)srod.r If uoy elso teesh esnvre ie..( in pvleci uef,)arrtc lwil ltsure ni ovolrewf nonti.cicnnee

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 +2  upvote downvote
submitted by โˆ—meryen13(48)
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plcive ;&-t-vrnege esciserna gvdonii iru,ne m3 prc,reote tr iaetsrtaapyhmcohpapscgiy e-ret-;v&ng nseecrsia riarnyu nr,neiteto yhecsmtaip,t atbe 3 dna plaah1 desrlcoeptrdeua.np gr&;vne--et tno rtpa of rtciotun,mii ist a ioamcts mooncnpet nda sha a ctinnioci reet.porc

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huszagmc  tiEabagornl hitw a ibt more T :teedilah lreddab eercivse npiut frmo both het onoiautcm mc(aysehittp nad raisphcatmaepyt) dan tsociam srma fo eht roenvsu Smspiestayhctmt .ey โ€“ ipytcshgaro veren (2T1 โ€“ 2.L) tI useasc nxoaerltai fo eht etsrduor cum,esl grpnimoto rinue .eeaciPrhim orntttsnpteaya โ€“ eivcpl eervn S.(2-4S) encesIrda ailssng rmfo sthi reven ecusa ioocrnntact of teh udtrsroe mc,uesl ugmasltniti amcmn.iuiictS riotto โ€“ eudpadln nerev )2S4.(- It itrenanesv teh eerxltan ruetlahr ,itehspnrc irdponvgi vuroylnat nlrctoo vreo iuit ntriI.omcn tihs sqeto,niu hte nma hsa a ddesitden bdarel,d whcih I erirdteptne sa eh" nc'at rnuatei pyonaoustsnl"e teoieh(swr he oylbabrp d'lwount elt sih adelrbd egt os ...ullf) -โ†’ semse lkei eh ahs ctuifflydi titrgccnona teh odestrru uecmsl ot etnaitii tcnruoiiitm โ†’- sisue wthi epilvc ese.rnv +1


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 +1  upvote downvote
submitted by โˆ—yo(89)
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nyiigrsrulps odog itapneanoxl nad pcuerti ndofu on ihst .etsi sginehmot glona eht lnies of tntimiarnucio rfelex (aka redladb si ullf adn uyo issp )erfelx is nego os the nfeafter sferib aicgrynr hte isgaln that het eldrabd is llfu ret'an org.wkin hteso rbeifs era rdireca in eth viplec renves

ts//:tpouors.epi.mupodsit/igc-/gytcit/rncrtotuodyelmc/ir/poxwwrebwo

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yo  fi still dcunfeo,s a eretbt intnlaoaepx nac eb fudno otisaniui/rnnduroetcr h//oemerth./in olpgs:sn.ehesnttwuutnsos/abic/a.hj +24
hyoscyamine  i ofudn sthi imgea ot be puflleh in mrbegrenemi which seervn od htwa no ihcwh rpoc.teer m/i/mki/.yWu.pjmeXoieefwvosaa/tt.spd/hclxtJila:thgrg +7


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 +0  upvote downvote
submitted by โˆ—bbr(58)
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I'm lsitl de,ncusof ewhre is isht sugy lbpreom ug?ornicc Is atth eh si bnulae to uraet,in or htta eh ash woeflovr ceo?teicnninn gtGitne ostl ni eshte enesv.r

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