PSL 310 UNIT 1 EXAM QUESTIONS AND
CORRECT ANSWERS
TheA2setA2pointA2forA2bodyA2temperatureA2isA2usuallyA2aA2valueA2aboveA2theA2rangeA2ofA2n
ormalA2bodyA2temperaturesA2-A2Ans--false
positiveA2feedbackA2occursA2duringA2laborA2andA2theA2nerveA2impulseA2-A2Ans--true
anA2effectorA2couldA2beA2aA2muscleA2orA2aA2glandA2-A2Ans--true
positiveA2feedbackA2movesA2aA2variableA2awayA2fromA2itsA2setA2pointA2-A2Ans--true
maintainingA2homeostasisA2isA2aA2sharedA2functionA2ofA2bodyA2systemsA2-A2Ans--true
_________A2distanceA2orA2thicknessA2ofA2theA2membrane,A2_______A2surfaceA2areaA2ofA2
theA2membrane,A2_________A2molecularA2weightA2ofA2theA2substance,A2andA2_________
______A2lipidA2solubilityA2ofA2theA2substanceA2allA2actA2toA2INCREASEA2theA2rateA2ofA2diff
usionA2ofA2aA2substanceA2throughA2aA2membraneA2-A2Ans--
decreased,A2increased,A2decreased,A2increased
CollagenA2isA2aA2fiberA2typeA2substanceA2thatA2isA2bestA2orA2mostA2ableA2toA2stretchA2andA
2recoilA2-A2Ans--false
gapA2junctionsA2allowA2ionsA2toA2moveA2fromA2oneA2cellA2intoA2anotherA2cellA2-A2Ans--true
tightA2junctionsA2canA2preventA2substancesA2fromA2movingA2betweenA2cellsA2-A2Ans--true
connexonsA2areA2madeA2ofA2proteinsA2andA2formA2aA2tunnelA2likeA2structureA2ofA2gapA2jun
ctions.A2-A2Ans--true
gapA2junctionsA2canA2beA2foundA2inA2theA2cardiacA2muscleA2alongA2withA2theA2smoothA2mu
scleA2-A2Ans--true
theA2"internalA2environment"A2ofA2theA2bodyA2(whichA2isA2maintainedA2inA2homeostasis)A2i
sA2what?A2-A2Ans--
TheA2extracellularA2fluidA2whichA2isA2theA2sameA2thingA2asA2theA2plasma
DuringA2labor,A2increasedA2stretchA2ofA2theA2cervixA2causesA2moreA2oxytocinA2release,A2w
hichA2causesA2strongerA2uterineA2contractions,A2whichA2causesA2moreA2oxytocinA2release
.A2ThisA2isA2anA2exampleA2ofA2NEGATIVEA2feedbackA2-A2Ans--
false.A2thisA2isA2positiveA2feedback
CarrierA2moleculesA2withinA2theA2cellA2membraneA2areA2what?A2-A2Ans--proteins
CORRECT ANSWERS
TheA2setA2pointA2forA2bodyA2temperatureA2isA2usuallyA2aA2valueA2aboveA2theA2rangeA2ofA2n
ormalA2bodyA2temperaturesA2-A2Ans--false
positiveA2feedbackA2occursA2duringA2laborA2andA2theA2nerveA2impulseA2-A2Ans--true
anA2effectorA2couldA2beA2aA2muscleA2orA2aA2glandA2-A2Ans--true
positiveA2feedbackA2movesA2aA2variableA2awayA2fromA2itsA2setA2pointA2-A2Ans--true
maintainingA2homeostasisA2isA2aA2sharedA2functionA2ofA2bodyA2systemsA2-A2Ans--true
_________A2distanceA2orA2thicknessA2ofA2theA2membrane,A2_______A2surfaceA2areaA2ofA2
theA2membrane,A2_________A2molecularA2weightA2ofA2theA2substance,A2andA2_________
______A2lipidA2solubilityA2ofA2theA2substanceA2allA2actA2toA2INCREASEA2theA2rateA2ofA2diff
usionA2ofA2aA2substanceA2throughA2aA2membraneA2-A2Ans--
decreased,A2increased,A2decreased,A2increased
CollagenA2isA2aA2fiberA2typeA2substanceA2thatA2isA2bestA2orA2mostA2ableA2toA2stretchA2andA
2recoilA2-A2Ans--false
gapA2junctionsA2allowA2ionsA2toA2moveA2fromA2oneA2cellA2intoA2anotherA2cellA2-A2Ans--true
tightA2junctionsA2canA2preventA2substancesA2fromA2movingA2betweenA2cellsA2-A2Ans--true
connexonsA2areA2madeA2ofA2proteinsA2andA2formA2aA2tunnelA2likeA2structureA2ofA2gapA2jun
ctions.A2-A2Ans--true
gapA2junctionsA2canA2beA2foundA2inA2theA2cardiacA2muscleA2alongA2withA2theA2smoothA2mu
scleA2-A2Ans--true
theA2"internalA2environment"A2ofA2theA2bodyA2(whichA2isA2maintainedA2inA2homeostasis)A2i
sA2what?A2-A2Ans--
TheA2extracellularA2fluidA2whichA2isA2theA2sameA2thingA2asA2theA2plasma
DuringA2labor,A2increasedA2stretchA2ofA2theA2cervixA2causesA2moreA2oxytocinA2release,A2w
hichA2causesA2strongerA2uterineA2contractions,A2whichA2causesA2moreA2oxytocinA2release
.A2ThisA2isA2anA2exampleA2ofA2NEGATIVEA2feedbackA2-A2Ans--
false.A2thisA2isA2positiveA2feedback
CarrierA2moleculesA2withinA2theA2cellA2membraneA2areA2what?A2-A2Ans--proteins
