BPK 105 FINAL EXAM WITH CORRECT
EXPLAINED ANSWERS
An xinward xrush xof xsodium xions xcauses xthe xinside xof xthe xcell xto x____ xand
xbecome xmore xpositive. x- xCORRECT✅✅depolarize
Action xpotentials xin xthe xT xtubules xof xmuscle xcause xthe x_______ xto xrelease
xcalcium xinto xthe xsarcoplasm. x- xCORRECT✅✅sarcoplasmic xreticulum
When xmuscle xstimulation xoccurs xbefore xcomplete xrelaxation xof xa xfiber x_______ xor
xan xincrease xin xmuscle xfiber xtension xresults. x- xCORRECT✅✅summation
The x___________ xconnects xthe xmotor xneuron xwith xthe xmuscle xfiber xand xfacilitates
xthe xtransfer xof xthe xstimulus xthat xresults xin xmuscle xcontraction. x-
xCORRECT✅✅neuromuscular xjunction/synapse
Thin xmyofilaments xof xmuscle xare xmainly xcomposed xof x____ xalong xwith xtroponin
xand xtropomyosin. x- xCORRECT✅✅actin
Calcium xreleased xfrom xthe xsarcoplasmic xreticulum xbinds xto x_____ xwhich xcauses
xthe xexposure xof xthe xmyosin xbinding xsite xon xactin. x- xCORRECT✅✅troponin
_____ xrespiration xis xvery xefficient xand xrequires xoxygen xto xproduce xATP xwithin xthe
xmitochondria. x- xCORRECT✅✅Aerobic
______ xrespiration xsupports xintense xmuscle xcontraction xfor xup xto x2-3 xminutes,
xdoes xnot xrequire xoxygen, xand xresults xin xthe xproduction xof xATP xand xlactic xacid. x-
xCORRECT✅✅Anaerobic
1. xDuring xintense xactivity xthe xhigh xenergy xmolecule x___________ xcan xquickly
xproduce xATP xto xmaintain xmuscle xcontraction. x- xCORRECT✅✅creatine
xphosphate
The xbasic xfunctional xunit xof xthe xskeletal xmuscle, xthe x_________, xspans xbetween
xtwo xz xdisks xand xis xdecreased xin xlength xduring xthe xsliding xfilament xmodel xof
xcontraction. x- xCORRECT✅✅sarcomere
The xneurotransmitter x________ xbinds xto xsodium xreceptors xon xthe xpostsynaptic
xmembrane xof xmuscle xto xstimulate xthe xopening xof xsodium xchannels xand xaction
xpotential. x- xCORRECT✅✅acetylcholine
, 1. xWhen xATP xis xutilized xfaster xthan xit xcan xbe xproduced xthe xforce xof xcontraction
xbecomes xweaker xand xweaker, xindicating xmuscle x________. x-
xCORRECT✅✅fatigue
When xa xheavy xweight xis xlowered xslowly xthe xmuscle xcontracts xas xit xlengthens,
xindicating xa(n) x______ xtype xisotonic xcontraction. x- xCORRECT✅✅eccentric
The xneurotransmitter xacetylcholine xmust xpass xacross xthe x________ xto xtrigger
xaction xpotential xwithin xthe xmuscle x- xCORRECT✅✅synaptic xcleft
The xthick x______ xmyofilament xcontains xa xhead xportion xwhich xbinds xto xform xthe
xcross xbridge xand xcontraction xcycle. x- xCORRECT✅✅myosin
Stimulation xso xrapid xthat xthere xis xno xrelaxation xresults xin x_____ xdue xto xthe xbuild-
up xof xcalcium xions. x- xCORRECT✅✅tetanus
1. xThe xrapid xdepolarization xand xrepolarization xof xthe xcell xmembrane xthat xresults xin
xmuscle xcontraction xis xreferred xto xas xa(n) x_________. x- xCORRECT✅✅action
xpotential
Hydrochloric xacid xis xinvolved xin xthe xdigestion xof xprotein xin xthe xstomach. xIt xis
xproduced xby x______ xcells xfound xwithin xthe xgastric xpits xof xthe xstomach. x-
xCORRECT✅✅parietal
In xaddition xto xits xrole xas xan xendocrine xgland, xthe x_______ xproduces xthe xenzymes
xtrypsin, xchymotrypsin, xand xcarboxypeptidase xthat xare xinvolved xin xthe xfinal
xdigestion xof xprotein xin xthe xsmall xintestine. x- xCORRECT✅✅pancreas
The xprocess xof xthe xbreakdown xof xfood xto xmolecules xthat xare xsmall xenough xto
xcross xinto xcirculation xis xcalled x______. x- xCORRECT✅✅digestion
The x_________ xlayer xof xthe xdigestive xtract xcontains xa xcircular xand xa xlongitudinal
xlayer xof xmuscle xthat xcontributes xto xthe xmixing xand xmovement xof xthe xcontents xof
xthe xdigestive xsystem. x- xCORRECT✅✅muscularis
The x________ xphase xof xswallowing xis xa xreflex xthat xbegins xwith xthe xelevation xof
xthe xsoft xpalate xand xends xwith xthe xfood xpassing xthe xepiglottis xand xentering xthe
xesophagus. x- xCORRECT✅✅pharyngeal
The xopening xbetween xthe xstomach xand xthe xsmall xintestine xis xsurrounded xby xa
xthick xring xof xsmooth xmuscle xcalled xthe x_______. x- xCORRECT✅✅pyloric
xsphincter
The xhormones x_______, xgastric xinhibitory xpeptide, xand xcholecystokinin xare
xreleased xfrom xthe xduodenum xof xthe xsmall xintestine xin xresponse xto xthe xpresence
EXPLAINED ANSWERS
An xinward xrush xof xsodium xions xcauses xthe xinside xof xthe xcell xto x____ xand
xbecome xmore xpositive. x- xCORRECT✅✅depolarize
Action xpotentials xin xthe xT xtubules xof xmuscle xcause xthe x_______ xto xrelease
xcalcium xinto xthe xsarcoplasm. x- xCORRECT✅✅sarcoplasmic xreticulum
When xmuscle xstimulation xoccurs xbefore xcomplete xrelaxation xof xa xfiber x_______ xor
xan xincrease xin xmuscle xfiber xtension xresults. x- xCORRECT✅✅summation
The x___________ xconnects xthe xmotor xneuron xwith xthe xmuscle xfiber xand xfacilitates
xthe xtransfer xof xthe xstimulus xthat xresults xin xmuscle xcontraction. x-
xCORRECT✅✅neuromuscular xjunction/synapse
Thin xmyofilaments xof xmuscle xare xmainly xcomposed xof x____ xalong xwith xtroponin
xand xtropomyosin. x- xCORRECT✅✅actin
Calcium xreleased xfrom xthe xsarcoplasmic xreticulum xbinds xto x_____ xwhich xcauses
xthe xexposure xof xthe xmyosin xbinding xsite xon xactin. x- xCORRECT✅✅troponin
_____ xrespiration xis xvery xefficient xand xrequires xoxygen xto xproduce xATP xwithin xthe
xmitochondria. x- xCORRECT✅✅Aerobic
______ xrespiration xsupports xintense xmuscle xcontraction xfor xup xto x2-3 xminutes,
xdoes xnot xrequire xoxygen, xand xresults xin xthe xproduction xof xATP xand xlactic xacid. x-
xCORRECT✅✅Anaerobic
1. xDuring xintense xactivity xthe xhigh xenergy xmolecule x___________ xcan xquickly
xproduce xATP xto xmaintain xmuscle xcontraction. x- xCORRECT✅✅creatine
xphosphate
The xbasic xfunctional xunit xof xthe xskeletal xmuscle, xthe x_________, xspans xbetween
xtwo xz xdisks xand xis xdecreased xin xlength xduring xthe xsliding xfilament xmodel xof
xcontraction. x- xCORRECT✅✅sarcomere
The xneurotransmitter x________ xbinds xto xsodium xreceptors xon xthe xpostsynaptic
xmembrane xof xmuscle xto xstimulate xthe xopening xof xsodium xchannels xand xaction
xpotential. x- xCORRECT✅✅acetylcholine
, 1. xWhen xATP xis xutilized xfaster xthan xit xcan xbe xproduced xthe xforce xof xcontraction
xbecomes xweaker xand xweaker, xindicating xmuscle x________. x-
xCORRECT✅✅fatigue
When xa xheavy xweight xis xlowered xslowly xthe xmuscle xcontracts xas xit xlengthens,
xindicating xa(n) x______ xtype xisotonic xcontraction. x- xCORRECT✅✅eccentric
The xneurotransmitter xacetylcholine xmust xpass xacross xthe x________ xto xtrigger
xaction xpotential xwithin xthe xmuscle x- xCORRECT✅✅synaptic xcleft
The xthick x______ xmyofilament xcontains xa xhead xportion xwhich xbinds xto xform xthe
xcross xbridge xand xcontraction xcycle. x- xCORRECT✅✅myosin
Stimulation xso xrapid xthat xthere xis xno xrelaxation xresults xin x_____ xdue xto xthe xbuild-
up xof xcalcium xions. x- xCORRECT✅✅tetanus
1. xThe xrapid xdepolarization xand xrepolarization xof xthe xcell xmembrane xthat xresults xin
xmuscle xcontraction xis xreferred xto xas xa(n) x_________. x- xCORRECT✅✅action
xpotential
Hydrochloric xacid xis xinvolved xin xthe xdigestion xof xprotein xin xthe xstomach. xIt xis
xproduced xby x______ xcells xfound xwithin xthe xgastric xpits xof xthe xstomach. x-
xCORRECT✅✅parietal
In xaddition xto xits xrole xas xan xendocrine xgland, xthe x_______ xproduces xthe xenzymes
xtrypsin, xchymotrypsin, xand xcarboxypeptidase xthat xare xinvolved xin xthe xfinal
xdigestion xof xprotein xin xthe xsmall xintestine. x- xCORRECT✅✅pancreas
The xprocess xof xthe xbreakdown xof xfood xto xmolecules xthat xare xsmall xenough xto
xcross xinto xcirculation xis xcalled x______. x- xCORRECT✅✅digestion
The x_________ xlayer xof xthe xdigestive xtract xcontains xa xcircular xand xa xlongitudinal
xlayer xof xmuscle xthat xcontributes xto xthe xmixing xand xmovement xof xthe xcontents xof
xthe xdigestive xsystem. x- xCORRECT✅✅muscularis
The x________ xphase xof xswallowing xis xa xreflex xthat xbegins xwith xthe xelevation xof
xthe xsoft xpalate xand xends xwith xthe xfood xpassing xthe xepiglottis xand xentering xthe
xesophagus. x- xCORRECT✅✅pharyngeal
The xopening xbetween xthe xstomach xand xthe xsmall xintestine xis xsurrounded xby xa
xthick xring xof xsmooth xmuscle xcalled xthe x_______. x- xCORRECT✅✅pyloric
xsphincter
The xhormones x_______, xgastric xinhibitory xpeptide, xand xcholecystokinin xare
xreleased xfrom xthe xduodenum xof xthe xsmall xintestine xin xresponse xto xthe xpresence
