BIO 2430 - EXAM 2; CH10 WITH CORRECT
RESPONCES
Why ris rthere rrapid rgrowth rof rthe rbrain rin rthe rfirst ryears rof rlife? r-
rCORRECT✅✅Due rto rincreased rsized rneurons, rneuroglia, rand rmyelination.
What ris rthe rpeak rability rto rmemorize, rpeak rage rfor rmental rmaturity, rpeak rage rof
rwisdom, rand rpeak rage rof ratrophy rof rcertain rportions rin rMALE rand rFEMALE? r-
rCORRECT✅✅Both r(mental rmaturity) r= r18-20's, rfor rmental rmaturity: rmale r= r43
rand rfemale r= r32, rBoth rfor rpeak rage rof rwisdom r= r50, rand rboth rfor ratrophy r= r60-70
After r16 rdays rafter rconception, rwhat rhappens rto ra rfetus's rneural rplate? r
When rdoes rit rclose rand rwhat relse rdoes rit rdo? r- rCORRECT✅✅The rneural rplate
rforms rand rbegins rto rfold runtil rforming ra rneural rtube.
It rcloses rafter r7 rweeks rand rseparates rinto rthe rfore/mid/hindbrain.
What rdoes rfetal rexposure rto ralcohol rconsumed rcause? r- rCORRECT✅✅Irreversible
rDamage! r(brain rdamage/growth rproblems).
What rdoes rAlcohol rexposure rprompt? r- rCORRECT✅✅Neural rcrest rcells rto rdie
rprematurely! r(facial rstructures rand rbrain rcells)
They ralso rform rmost rof rthe rPNS
What rdoes rAlcohol rexposure rslow rdown? r- rCORRECT✅✅The rreproduction rof
rneural rstem rcells r(drives rdown rdevelopment rof rfetal rbrain).
What rare rthe r"optimum rperiods" rfor rspecific rdevelopment rcalled? rDefine rit!
What rinterferes rwith rthis? r- rCORRECT✅✅Windows rof rOpportunity, rthe rtimes rwhen
rlearning rin rspecific rareas rcan rdevelop rat ran rincredible rrate.
Traumatic rStress r:(
What ris rNeuroplasticity? r- rCORRECT✅✅The rbrain's rcapacity rto rcontinue rgrowing
rand revolving rin rresponse rto rlife's rexperiences.
Remember r= rPlasticity ris rthe rcapacity rto rbe rshaped rmolded ror raltered
How rdoes rNeuroplasticity rwork? r- rCORRECT✅✅By rcreating rnew rneurons rand
rbuilding rnew rnetworks
, What rare rthe rfour rmain rregions rof rthe rhuman rbrain? r- rCORRECT✅✅Cerebrum
r(outer rlayer)
Diencephalon r(the rmiddle rinside)
Cerebellum r(the rball rhanging routside)
Brain rStem r(the rstick rconnected rto rspinal rcord)
Figure rout rwhat ris rbeing rdescribed rwith rthe rgiven rinfo:
-Sudden ronset rsymptoms, rusually rhours
-Unilateral
-Eyebrow rSagging
-Inability rto rclose reyes
-loss rof rnasolabial rfold
-Decreased rtearing
-Hyperacusis
-Loss rof rtaste rto ranterior r2/3 rtongue
-Mouth rdroop
==WHAT rNERVE rDOES rIT rAFFECT?== r- rCORRECT✅✅Bell's rPalsy
if raffects rthe rFacial rNerve rVII
What ris rthe rbrain rstructure rbeing rdescribed?
-Outermost rportion rof rbrain
-Divided rinto r2 rhemispheres r==WHAT rIS rIT rCONNECTED rBY?==
-4 rmain rlobes r==WHAT rARE rTHEY?==
-Contains rwhite rand rgrey?
==HOW rMUCH rBRAIN rMASS rDOES rIT rMAKE rUP?== r- rCORRECT✅✅The
rcerebrum
Connected rby rthe rCorpus rCallosum
Frontal, rParietal, rOccipital, rand rTemporal
>80% rof rbrain rmass
Control rover rmost ractivities ris rcontralateral. rWhat rdoes rthat rmean?
What rfunctions rdoes rthe rCerebrum rdo? r- rCORRECT✅✅Contralateral rmeans rthe
rright rside rdeals rwith rthe rleft rside rand rvice rversa.
Responsible rfor rhigher rbrain rfunction, rvoluntary rmotor rcontrol, rspeech, rintellectual
rprocesses, rsensory rinterpretation.
What ris rthe rcerebral rcortex rresponsible rfor r(The rgray rmatter)? r-
rCORRECT✅✅many rhigh-order rbrain rfunctions rsuch ras rsensation, rperception,
rmemory, rassociation, rthought, rand rvoluntary rphysical raction.
RESPONCES
Why ris rthere rrapid rgrowth rof rthe rbrain rin rthe rfirst ryears rof rlife? r-
rCORRECT✅✅Due rto rincreased rsized rneurons, rneuroglia, rand rmyelination.
What ris rthe rpeak rability rto rmemorize, rpeak rage rfor rmental rmaturity, rpeak rage rof
rwisdom, rand rpeak rage rof ratrophy rof rcertain rportions rin rMALE rand rFEMALE? r-
rCORRECT✅✅Both r(mental rmaturity) r= r18-20's, rfor rmental rmaturity: rmale r= r43
rand rfemale r= r32, rBoth rfor rpeak rage rof rwisdom r= r50, rand rboth rfor ratrophy r= r60-70
After r16 rdays rafter rconception, rwhat rhappens rto ra rfetus's rneural rplate? r
When rdoes rit rclose rand rwhat relse rdoes rit rdo? r- rCORRECT✅✅The rneural rplate
rforms rand rbegins rto rfold runtil rforming ra rneural rtube.
It rcloses rafter r7 rweeks rand rseparates rinto rthe rfore/mid/hindbrain.
What rdoes rfetal rexposure rto ralcohol rconsumed rcause? r- rCORRECT✅✅Irreversible
rDamage! r(brain rdamage/growth rproblems).
What rdoes rAlcohol rexposure rprompt? r- rCORRECT✅✅Neural rcrest rcells rto rdie
rprematurely! r(facial rstructures rand rbrain rcells)
They ralso rform rmost rof rthe rPNS
What rdoes rAlcohol rexposure rslow rdown? r- rCORRECT✅✅The rreproduction rof
rneural rstem rcells r(drives rdown rdevelopment rof rfetal rbrain).
What rare rthe r"optimum rperiods" rfor rspecific rdevelopment rcalled? rDefine rit!
What rinterferes rwith rthis? r- rCORRECT✅✅Windows rof rOpportunity, rthe rtimes rwhen
rlearning rin rspecific rareas rcan rdevelop rat ran rincredible rrate.
Traumatic rStress r:(
What ris rNeuroplasticity? r- rCORRECT✅✅The rbrain's rcapacity rto rcontinue rgrowing
rand revolving rin rresponse rto rlife's rexperiences.
Remember r= rPlasticity ris rthe rcapacity rto rbe rshaped rmolded ror raltered
How rdoes rNeuroplasticity rwork? r- rCORRECT✅✅By rcreating rnew rneurons rand
rbuilding rnew rnetworks
, What rare rthe rfour rmain rregions rof rthe rhuman rbrain? r- rCORRECT✅✅Cerebrum
r(outer rlayer)
Diencephalon r(the rmiddle rinside)
Cerebellum r(the rball rhanging routside)
Brain rStem r(the rstick rconnected rto rspinal rcord)
Figure rout rwhat ris rbeing rdescribed rwith rthe rgiven rinfo:
-Sudden ronset rsymptoms, rusually rhours
-Unilateral
-Eyebrow rSagging
-Inability rto rclose reyes
-loss rof rnasolabial rfold
-Decreased rtearing
-Hyperacusis
-Loss rof rtaste rto ranterior r2/3 rtongue
-Mouth rdroop
==WHAT rNERVE rDOES rIT rAFFECT?== r- rCORRECT✅✅Bell's rPalsy
if raffects rthe rFacial rNerve rVII
What ris rthe rbrain rstructure rbeing rdescribed?
-Outermost rportion rof rbrain
-Divided rinto r2 rhemispheres r==WHAT rIS rIT rCONNECTED rBY?==
-4 rmain rlobes r==WHAT rARE rTHEY?==
-Contains rwhite rand rgrey?
==HOW rMUCH rBRAIN rMASS rDOES rIT rMAKE rUP?== r- rCORRECT✅✅The
rcerebrum
Connected rby rthe rCorpus rCallosum
Frontal, rParietal, rOccipital, rand rTemporal
>80% rof rbrain rmass
Control rover rmost ractivities ris rcontralateral. rWhat rdoes rthat rmean?
What rfunctions rdoes rthe rCerebrum rdo? r- rCORRECT✅✅Contralateral rmeans rthe
rright rside rdeals rwith rthe rleft rside rand rvice rversa.
Responsible rfor rhigher rbrain rfunction, rvoluntary rmotor rcontrol, rspeech, rintellectual
rprocesses, rsensory rinterpretation.
What ris rthe rcerebral rcortex rresponsible rfor r(The rgray rmatter)? r-
rCORRECT✅✅many rhigh-order rbrain rfunctions rsuch ras rsensation, rperception,
rmemory, rassociation, rthought, rand rvoluntary rphysical raction.
