PHYSIOLOGY 2: FINAL EXAM REVIEW
2mBranchesmofmNervousmSystemm-mCORRECTmANSWERmCNSmandmPNS
PNSmbranchesmintomwhichmtwomNS?m-mCORRECTmANSWERmSomaticmNSmandmAutonomicmNS
AutonomicmNSmbranchesmintom-mCORRECTmANSWERmSympatheticmandmParasympatheticmNS
WhatmaremthemsympatheticmandmparasympatheticmNS?m-
mCORRECTmANSWERmSymp:mfightmormflight
Para:mrelaxedmstate
Anatomymofmamneuron:mnamemthembranchesmthatmemergemfrommthemcellmbodymsurroundingmthemn
ucleusm-mCORRECTmANSWERmDendrites
Whatmismthemlongmpartmofmamneuronmcalled?m-mCORRECTmANSWERmThemaxon
Whatmprotectsmthemaxon?m-mCORRECTmANSWERmMyelinmsheath
Whatmismthemendmofmanmaxonmcalled?m-mCORRECTmANSWERmaxonmterminal
Namemthemthreemkindsmofmneuronsm-mCORRECTmANSWERmMultipolar,mbipolar,munipolar
Wheremaremeachmofmthemthreemtypesmofmneuronsmtypicallymfound?m-
mCORRECTmANSWERmMultipolar:mmotormneurons,mi.e.mmovement
Bipolar:mspecialmreceptorsminmvisualmandmolfactory
Unipolar:mSenseorymreceptors
, Whatmaremastrocytes?m-
mCORRECTmANSWERmTheymclingmtomcapillariesmformbloodmenteringmthembrainmtomensuremthatmnoth
ingmharmfulmtomthembrainmentersmit.mThismseparatesmthembrain'smbloodmflowmfrommthemrestmofmcirc
ulation,mcalledmthemblood-brainmbarrier
Whatmismthemrrestingmchargemofmplasma?m-mCORRECTmANSWERm-70mV
Whatmmaintainsmrestingmpotential?m-mCORRECTmANSWERmNa/mKmpump
Wheremdoesmanmactionmpotentialmtravel?m-
mCORRECTmANSWERmalongmthemlengthmofmanmaxonmfrommcellmbodymtomaxonmterminals
Stepsmofmactionmpotentialm-mCORRECTmANSWERmRestingmstate
*stimulus*
Depolarization
Repolarization
Afterpolarization
Whatmismoutside/minsidemduringmeachmstepmofmactionmpotentialm-mCORRECTmANSWERmStep:min/out
1:mK/Na
2:mK/mNamgatemopens
3:mNamgatemclosesm/mKmgatemopens
4:mKmgatemverymslowlymcloses,mstillmallowingmsomemKmthrough/mNamgatemstaysmclosed
WhatmismthemDRG?m-
mCORRECTmANSWERmDorsalmRootmGanglion,mcontainsmthemcellmbodiesmofmsensorymneurons