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

Retired 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: pharm neuro magnesium repeat

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submitted by ∗niboonsh(409)

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:uuhvp./mtwwcw-oov=zcDut4w?Qwobh2./aet/Hyst fi ru yzal iekl m,e iths is a oodg erherefsr ioved

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d_holles imznAga vdeoi d.deu ooemShw nrvee ldreena sith ni runoe o.ll +7

aag Aewsome idv!oe sI sith ywh you cna vegi 2g+M ot meicasalp is,antetp esaeubc fi ,so midn dagndmo bwln.o +4

effect of glutamate antagonist on pt with acute cerebral infarction = targets NMDA receptor

decreases calcium entry into neurons = decreased excitotoxicity = promotes recovery from acute cerebral infarction.

+1/- namesthegame22(13)

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submitted by ∗cantaloupe5(87)

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hTsi eon aws iykctr utb I hiktn oyu v’locdue neod ihts one uhwtiot gkenledow fo NMDA spcrteoer. eStm oldt uyo ttha lugaettam aatcevtis hotb AM-NnoDn nda ANMD rrpcseoet tub ti iaetctavd nyol -NnnoDMA ectsroerp ni eth yrlae he.spa hTta mesan ADMN pesctrore aectitva tarfe onNDA-Mn rsrtoeep.c Ttah names igehotnsm aws adygeiln NADM ocprrete ntgciatavi adn eth ylno reawsn atht daem seesn sa hte Mg ghininiibt DMAN ta gnetirs poil.antet nceO teh clel is dezaeroidpl yb oNn-AMDn crtsp,roee NMAD eroptcres nca eb ivactt.dae

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hungrybox I tifotogddrn'/ wonk siht ficdtao nad rraendwo ti ot eth eroctrc rwnaes nad a ngwor .raswne sGuse hhwic one I ?ehocs +15

yotsubato >ahTt enasm seigtnomh was leygidan DNAM terprcoe attvinicga dna eht lnoy rnwase hatt mead sense sa eth Mg tbiinngiih DMAN at riegnts nth aoaeil .Wttp asmke het atgfsin itgang itikcnse ceiohc irntccreo hte?n +5

imgdoc DNAM croeptrse aer hobt vltgoea tgade adn igdnla atdge .escnnalh emtGaautl dna epttaaras ear gnnudsoeoe ngdials ofr tsih eoertcp.r gBndiin fo oen fo eth sganlid is qdeurrei ot onep teh naechln tuhs ti bexhisti ettrchsriccsaai of a daginl acnelhn. fI mE e(nebarmm oeitnl)atp is omre enaeivtg nhat 7-0 Vm, innbdig fo het lginda osde TON onpe eht neacnhl +2g(M oblkc no teh ADNM er.ocretp) FI Em is sels ingvaete tnha 70- Vm ignndib fo hte ndalig ospne hte cnnelha ev(ne gouhht no 2+gM ckbol ta ihts ,Em nhelnac liwl otn oenp wohittu dilnga ingi.bdn ut O of hte rwsane heoccsi lnoy AMDN rrsoeetcp ckdelbo yb +gM2 samek .esens oep H tsih p.hels +8

divya eetws alnotneapxi miodgc +

lovebug aler~l~y~ swee.t hnuatyko ): +

+3 upvote downvote
submitted by ∗sweetmed(157)

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tA estrign nmembrae iotapeltn teh MAND rortepces rea bkecdol yb 2+gM. Teh aovetlg neeedtnpd +M2g ocbkl is eidevler onpu ooaipnetdlizar of het satsptionpc-y rbeammen . hTe daglni etnendedp itncitoava of the NAMD peocretr reiruseq aitaonto-vcci by otw dg,snlia alynem tmaeulgat dna ln.ecgiy

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submitted by ∗okokok1(38)

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An tportnmia dtaleer ilciclan ipcpaitlnao si bnm:eermrige vnOraai arteoamt and rthei aoniiastossc :wiht itNAM-DAn rrepoetc l.tcneahsieip iThs erpsnest :as ahiyctPrisc uc,arsetbidn mmyoer fscitde,i rseiu,esz e,sdsnikiays moouicatn l,tnstybiaii geaunlag tcfduy.ionns

F:A 0022; pg 822

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-1 upvote downvote
submitted by vlodkadrinker(7)

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'ntod ertgof obuta het Mg olcbk! . . . . . .

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chandlerbas Jwvw/bou-H/t.tmaHet/Ewc?mspcz.ufwyPXg:h=tho +3

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