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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.u-Dyev2Hptwwsv.?=/bm/Qoozhwo:4uw/tuhtacwct fi ru yazl lkie me, sthi is a dgoo srefheerr iedov

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d_holles zAgmina vieod dedu. ehSoomw enver aleredn tshi in uenro lo.l +7

aag owAeems ed!iov sI sthi why ouy can vegi M2g+ ot acaeipmls atps,tien scebuae if os, indm admgdon bnwlo. +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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hTis neo wsa tkcryi utb I nkhit ouy oe’uldcv deon htsi neo uihtwto noedlewkg fo ANMD soeprc.etr eSmt otld ouy taht mteluatga etcsaitav bhto M-nDAoNn dan MNAD crsreetpo utb ti atctavied yonl nMAon-ND rotrspece in eth larey sape.h Ttah amesn MADN torecepsr aatevcit treaf on-AnDNM e.pretrcos tahT aensm neohtimsg saw dgiylnae NMAD oprctere inaatvgtic nda eht lony aswenr hatt maed enses as eth Mg bngihiiint NADM at sretign pitoe.lnat nOce eth clle si opriaeedzld yb DMnNoA-n rreec,otps NADM rretsoecp nac eb te.taiadcv

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hungrybox I tdogtrifd/no' wokn stih ditoafc adn wroernda ti ot eth rccoter esranw and a onwrg .awersn Geuss wchih one I hoesc? +15

yotsubato >Ttha aesmn ghomtinse saw lneydiga MADN torrcepe iaacgvtitn dna hte ynlo wrenas thta dmea ssene sa eth gM iitnnibigh AMDN ta ristneg na ttopW. hleiat aesmk teh ingfsta naigtg seniktci ieccoh nrcreocit nthe? +5

imgdoc NMDA oeprtrsec era bhot goatelv atdeg and dnliga detga nane.hscl uemlatGat nad trapeasta era ugnnseodoe ndsiagl fro hsit t.rrecpeo giindnB of eon of teh aslindg si rueirqed ot noep hte cnalehn usth ti tebshiix cictrsaecitasrh fo a ngilad n.hcnela If Em (marebmne itople)nta is orme inevgaet tnha 07- Vm, bdignni of hte dilagn sode NTO oenp hte hceanln +2gM( kbcol on het NAMD rc.eep)rot IF Em si essl igeeanvt tahn -70 mV bnnigid of eht gialnd pnoes the hcealnn vee(n uhohtg no M+2g ockbl at hist ,Em nehcnal lilw nto enop hwtiout alndgi nidgb.ni Otu fo hte newars ishocec yonl DMNA cesterpor eodlcbk by +2Mg emkas ssne.e poeH stih sep.lh +8

divya wtsee aaxnntolipe mocdgi +

lovebug r~l~ae~yl ste.ew utkahnyo ): +

+3 upvote downvote
submitted by ∗sweetmed(157)

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At gitsenr eenarbmm tlpetioan eht MNAD sceerotpr are bclodke yb M+2.g eTh lvgetoa depedntne 2+Mg oclkb si lveeiedr puon nrieiozlodaapt fo het tpossna-pciyt aernemmb . eTh anigld pendtdene anoatictvi of hte NMAD trcroepe uesieqrr caiit-nvoatoc by tow dnas,igl mnayel tmteagual and ceyli.ng

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+0 upvote downvote
submitted by ∗okokok1(38)

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nA pirotmtna erdatle ciillanc itpanlioapc is eeebmmnr:gir raivnaO amrotaet adn rhtie soassocaniti ht:wi nNit-MDAA tepecror ec.tialenishp Tshi tessenpr :as hcPriascyti cenbtui,dars ormeym ,idfeitcs iszrse,ue snk,siiyedsa ncoatmuio tiatylisnb,i eglagnau .ocusynditnf

F:A ;0202 pg 228

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-1 upvote downvote
submitted by vlodkadrinker(7)

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notd' rgtofe btoau hte Mg klb!co . . . . . .

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chandlerbas wemcoutc:gvsX?yJw/huth.H/-Eptow=H/.ftmwabzP +3

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