COGSCI 115 EXAM TEST WITH ALL NEEDED TO PASS…HIGRADES.

Cogsci 115 Exam Test With All Needed b b b b b b




To Pass…Higrades b b




Growth mMindset m- m mcorrect manswer-Belief mthat mpeople's mmost mbasic mabilities mcan
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mbe mdeveloped mthrough mdedication mand mhard mwork... mThis mview mcreates ma mlove mof
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mlearning mand mresilience mthat mis messential mfor mgreat maccomplishment.
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How mmany mpounds mis myour mbrain? m- m mcorrect manswer-3 mlbs
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How mmany mneurons mdoes myour mbrain mcontain? m- m mcorrect manswer-86 mbillion
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How mmany msynaptic mconnections mdoes mthe maverage mneuron mmake mto mother
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mneurons? m- m mcorrect manswer-1000, mbut mit mvaries mfrom ma mhandful mto m200,000
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What mpercent mof mthe mbody's moxygen mand mglucose mis mused mby mthe mbrain? m- m
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mcorrect manswer-20%
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True mor mFalse: myour mbrain muses mup mto mten mtimes mmore menergy mwhen myou're
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mthinking mhard, mrather min mdeep msleep m- m mcorrect manswer-False
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Order mthese min mcorrect mOrganizational mOrder:
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- mindividual mneurons
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- mnervous msystem
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- mnerves, mganglia
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- mbrain mand mspinal mcord m- m mcorrect manswer-• mCell: mindividual mneurons
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• mTissue: mnerves, mganglia
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• mOrgan: mbrain mand mspinal mcord
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• mSystem: mnervous msystem
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Neuron mStructure: mSoma m(Cell mBody) m- m mcorrect manswer-The mcell mbody mof mthe
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mneuron, mwhich mcontains mthe mnucleus
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Dendrite m- m mcorrect manswer-The mbranched, mtreelike mextensions mattached mto mthe
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msoma mof ma mneuron; mreceives minformation mfrom mneurotransmitters mreleased mfrom
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mterminal mbutton mof mother mneurons
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, Axon m- m mcorrect manswer-The mextension mof ma mneuron, mending min mbranching mterminal
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mfibers, mthrough mwhich mmessages mare msent mto mother mneurons
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Terminal mbutton m- m mcorrect manswer-The mbud mat mthe mend mof ma mbranch mof man mexon;
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mforms msynapses mwith mother mneurons; msends minformation mto mthose mneurons
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mthrough mneurotransmitters
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Neuotransmitter m- m mcorrect manswer-A mchemical mthat mis mreleased mby mthe mterminal b b b b b b b b b b b




mbutton; mhas man mexcitatory mor minhibitory meffect mon mthe mother mneurons
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Myelin mSheath m- m mcorrect manswer-A mlayer mof mfatty mcells msegmentally mencasing
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mfibers mof mmany mneurons; mcomposed mof mglial mcells, mthe msupport mcells mof mthe mCNS;
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menables mvastly mgreater mtransmission mspeed mof mneural mimpulses mbecause mneural
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msignal mjumps mform mone mnode mof mRanvier mto mthe mnext; mDecreases mthe mamount mof
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menergy mneeded mfor mneural mconnection; minsulates mneurons, mpreventing mmessages
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mfrom mspreading mbetween madjacent mneurons
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Resting mMembrane mPotential m(-70 mmV) m- m mcorrect manswer-occurs mbecause mvarious
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mions mare mlocated min mdifferent mconcentrations min mfluid minside mand moutside mthe mcell
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What mis mthe mchemical mmakeup mof mthe mExtracellular mfluid maround mneurons mat mrest?
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m- m mcorrect manswer-Extracellular mfluid mis mrich min mNa+ mand mCl-
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What mis mmost mconcentrated min mthe mIntracellular mFluid mof mneurons? m- m mcorrect
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manswer-Intracellular mfluid mis mrich min mK+ mand mvarious morganic manions m(A-)
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Action mPotential m- m mcorrect manswer-the mbrief melectrical mimpulse mthat mprovides mthe
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mbasis mfor mconduction mof minformation malong man maxon
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Outline mthe mCorrect msteps mof man mAction mPotential:
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- mNA+ mChannels mopen
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- mMembrane mpotential mbecomes mmore mpositive mdue mto mpositive mions
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- mNa+ mchannels mclose
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- mK+ mgates mopen
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- mDepolarization moccurs, mbringing mthe mmembrane mpotential mback mto mnormal
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- mK+ mchannels mclose magain
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- mNa+/K+ mPumps mpump mK+ min mand mNa+ mout m- m mcorrect manswer-- mSodium
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mchannels mopen: mNa+ mrushes minto mthe mcell, mdriven mby mforce mof mdiffusion mand
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melectrostatic mpressure
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- mEntry mof mpositively mcharged mions mcauses mmembrane mpotential mto mreverse, mso mthe
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minside mbecomes mpositive
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- mSodium mchannels mclose magain
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- mPotassium mgates mopen: mdepolarization mcaused mby minflux mof mNa+ mcauses mK m+ mto
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mmove moutside mthe mcell, mquickly mbringing mthe mmembrane mpotential mback mto mits
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mresting mvalue
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- mPotassium mchannels mclose magain
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- mNa+ mis mpumped mback mout mand mK m+ mpumped mback min mby msodium
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- mpotassium mpumps
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