NBME 21 NMDA receptors are blocked by Mg2+ at the resting membrane potential (NBME Answers)

NBME 21 Answers

nbme21/Block 4/Question#45 (reveal difficulty score)
During an experiment, an investigator ...
NMDA receptors are blocked by Mg2+ at the resting membrane potential 🔍 / 📺 / 🌳
tags: neuro magnesium pharm

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+67
submitted by gribear(0),

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nCa oneomes lpxenai wyh henw ouy etctsran eht inlaps drco uiroprse to eth ellev of mheyisttcpa lwfouto -- nad uoy egt a mcyitess nionefcit -- het eopesnsr is aoetlintra of eth ehrtacitmsto tse ?potin

+58
submitted by ∗niboonsh(406),

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st?t/Quw:w/4we/mubocDoah2vy.ztt-wHh.v=uwpoc fi ru zyal ikel me, htis si a odgo rerfrhese ivdeo

d_holles nmgiAaz evodi e.udd woehmSo vnere aendrle shti in onure llo. +7

aag weAsoem ievo!d sI tsih yhw uyo acn eigv 2+gM to pmleacisa tastp,nei ecabesu fi ,so mind mandgod blwon. +3

+5
submitted by ∗cantaloupe5(87),

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sihT one saw tkyrci tub I knhit yuo ulve’cdo node hist noe utohitw eklwondeg of AMND .eopretcsr tmSe tdlo yuo ttha etgalatmu icstaeavt tobh nNoDAMn- adn NAMD tcspreore tub it aciatdevt nyol nM-nDNoA rsrepteoc ni eth yaelr epha.s aTth seanm NDAM roreecstp aittcvae taefr NonM-DAn seortp.ecr thaT mensa itgeshmon wsa iaeldyng DANM erocpetr cittngaavi dna het ynlo anesrw tath dema esesn sa eht Mg bgtniiinhi NDMA at ntiegrs neal.pitot cOne eth clel si ieezdpdalor yb oD-nMNAn peer,crots NDAM errsecpto nca eb evdtciaat.

hungrybox I tt/ogno'dirfd knwo tsih atdocif nad ronawerd ti to eth ocrrect wanres adn a nrwog s.rnaew ssuGe ihwch noe I hosc?e +15

yotsubato atT>h masne nieomshtg asw dineyagl NMDA prorcete navicgatit adn hte ylno sewran atht made ensse as the Mg bginiinthi MNDA at tirgesn h linatt aopetW. ksame hte gifatns gtinag entkicis cechoi rniercoct t?hne +5

imgdoc MDNA reroecpts rea bhto vaeogtl tegda nda naglid etagd elahn.cns Gtlaaumet and taparaset era gnouodnese lansdgi fro sthi oecprre.t giidnnB of noe fo hte aisgnld si qederiur to poen the cenalhn hstu it ixstbihe srcicaettchsria fo a lndagi h.encnla If mE r(eaebmmn )oltienapt si emro ietvngea htan 0-7 mV, bndiing of eth inldga deso TNO opne teh nlehnac +gM2( klcbo on eht AMDN or.tprce)e IF Em is elss anvieetg htna -70 mV dgbnini of the nlagdi opnse eth ahelncn n(eve othguh on gM+2 lbkoc ta tihs E,m lnnecah llwi not pnoe thiwtou ndalgi ni.bgind t Ou of hte nrswae coshcei lnoy MAND sctproeer celdbok by gM2+ kesma esnes. po He tish heps.l +7

divya ewest nlipxaeotna mdogic +

lovebug ll~~yr~ea tse.ew ouaknthy ): +

+3
submitted by ∗sweetmed(157),

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tA tisngre nmbremae nepoiatlt het MAND pocsreert rae lobkecd by M+.g2 hTe vgeltoa ndnepeedt +g2M bolck si rieeedlv onpu etoaranipozldi fo teh tnsci-otppysa ebnermma . eTh idglan dteeedpnn cintvatoai of the ANDM ctoreerp quisrree viao-tcoanitc by wot ain,dslg ylamen aamgltuet adn gilnyec.

+0
submitted by ∗okokok1(36),

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An tapntroim ledaert alciclni cppitalaoni si meeegrrmbin: Ovarani taearotm and ehtir sosstoncaaii iwt:h tNMAiD-An rcteeorp ih.inelatcspe Tihs spertsen :as Pyacitihscr cusrbe,datni yremmo d,itiscef uie,zrses k,ssyniaieds tuoincoma nlyait,itbis neggaaul yicufsdt.onn

:FA 20;20 pg 282

-1
submitted by vlodkadrinker(7),

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ond't grotfe otuba teh gM cok!bl . . . . . .

chandlerbas gEb-yompt/thPmw.c/w:=Hv.u?wh/tHstazfceXuJwo +3