Lab 14 The Urinary System
f f f f BIO202L
(Lab 14) Straighter line Anatomy & Physiology II
LAB BIO 202L The Urinary System Worksheet
2025 Latest Update
StudentfName:
AccessfCodef(locatedfonftheflidfoffyourflabfkit):
LabfReportfFormatfExpectations
Utilizefcollegeflevelfgrammarfandfprofessionalfformattingfwhenfcompletingfthisfworksheet.fSubmissionsfwit
houtfproperfformatting,fallfrequiredfphotosforfsufficientfresponsesfwillfbefrejected.fPre-flabfQuestions
1. Whatfisftheffunctionfoffthefureter?
Actfasfafpassagewayfforfurineffromfthefkidneyfintofthefbladder.
2. Comparefandfcontrastfthefmalefandffemalefurethra.
Thefmalefurethrafisfapproximatelyf20fcmflongfandfcomprisesfthefpenial,fmembranous,fandfprostatic
fsections.fWhenfitfemergesffromfthefpenis'fextremityfthroughfthefurinogenitalforifice,fitfincludesfbothf
urinefandfsemen.fInfcontrast,ftheffemalefurinaryfsystemfisfonlyf4fcmflong,flacksfdiscretefsections,fan
dffunctionsftofcarryfurine.fThefvaginalfaperturefisfaccessiblefthroughfthefurinefaperture.
3. Describeftheftwoflayersfoffthefkidneys.fT
hreefmainflayersfmakefupfthefkidney:
4. • Thefstifffconnectiveftissuesfthatfcomprisefthefoutermostflayerfarefthefrenalffascia.
5. • Thefintermediateflayer,forfthefperinealffatfcapsule,fstabilizesfthefkidney.
6. • Thefinnermostflayerfisfthefrenalfcapsule.
,Lab 14 The Urinary System
f f f f BIO202L
EXPERIMENTf1:fKIDNEYfFILTRATION
IntroductionfQuestions
1. Whatfspecificfpartfoffthefkidneyfdoesfthefdialysisftubingfrepresent?fWhatfisfthisfpart’sffunction?fDial
ysisftubingfisfafrepresentationfoffthefkidney'sfU-
shapedftubules.fAfnephronfisfafprominentfmorphologicalfandffunctionalfunitfoffthefkidney,fafU-
shapedftubuleffoundfinfthefkidney."Dueftofthefsemi-
permeabilityfoffitsflayer,fthefnephronffacilitatesfthefentryfandfexitfoffnumerousfionsfandfwaterfmolec
ulesffromfthefbody."
2. Whatfdoesfthefyellowffoodfcoloringfrepresentfatfthefendfoffthefexperiment?fWhatfdoesfthefCong
ofRedfrepresent?
Urinefisfindicatedfinfyellow,fwhilefbloodftracesfarefvisiblefinfredfinfthefdialysisfbag.
, Lab 14 The Urinary System
f f f f BIO202L
DatafandfObservations
Recordfyourfobservationsfasfrequiredfbyfthefexperimentalfprocedurefinftheftablefbelow.
Tablef1:fSolutionsfPresentfinfEachfContainerfBeforef60fMinutesfSubmersion
Solution DialysisfTubing Beaker
CongofRed yes no
YellowfFoodfColoring no yes
Tablef2:fSolutionsfPresentfinfEachfContainerfAfterf60fMinutesfSubmersion
Solution DialysisfTubing Beaker
CongofRed yes no
YellowfFoodfColoring no yes
ResultsfandfDiscussion
1. Whyfisfitfimportantfthatfthefkidneyffiltersfthefblood?fInfyourfresponse,fdiscussfwhatfisfbeingfrem
ovedfandfwhatfisfbeingfselectivelyfretained.
Wastesfarefexcretedffromfourfbodilyffunctions,fwhichfthefkidneysfeliminateffromfthefblood.fDependi
ngfuponfthefbodyfpartfthatfhormonesfcontrol,fthefkidneyfexcretesfandfreabsorbsfelectrolytes,fglucos
e,faminofacids,fandfotherfsmallfmolecules.fBoundfacidsfandfammoniumfionsfregulatefthefbloodfpH,f
andfthefkidneyfregulatesfthefconcentrationfoffthesefparticlesfinfthefblood.fThefkidneysffilterfureaffro
mfthefblood,fafwastefproductfoffaminofacidfsynthesisfthatfcontainsfnitrogen.fNitrogenousfbyproduct
sfoffaminofacidfsynthesisfwillfbuildfupfiffthefkidneysfcannotffilterfthefblood.fThus,fthefwastefwouldfre
mainfunfiltered.
f f f f BIO202L
(Lab 14) Straighter line Anatomy & Physiology II
LAB BIO 202L The Urinary System Worksheet
2025 Latest Update
StudentfName:
AccessfCodef(locatedfonftheflidfoffyourflabfkit):
LabfReportfFormatfExpectations
Utilizefcollegeflevelfgrammarfandfprofessionalfformattingfwhenfcompletingfthisfworksheet.fSubmissionsfwit
houtfproperfformatting,fallfrequiredfphotosforfsufficientfresponsesfwillfbefrejected.fPre-flabfQuestions
1. Whatfisftheffunctionfoffthefureter?
Actfasfafpassagewayfforfurineffromfthefkidneyfintofthefbladder.
2. Comparefandfcontrastfthefmalefandffemalefurethra.
Thefmalefurethrafisfapproximatelyf20fcmflongfandfcomprisesfthefpenial,fmembranous,fandfprostatic
fsections.fWhenfitfemergesffromfthefpenis'fextremityfthroughfthefurinogenitalforifice,fitfincludesfbothf
urinefandfsemen.fInfcontrast,ftheffemalefurinaryfsystemfisfonlyf4fcmflong,flacksfdiscretefsections,fan
dffunctionsftofcarryfurine.fThefvaginalfaperturefisfaccessiblefthroughfthefurinefaperture.
3. Describeftheftwoflayersfoffthefkidneys.fT
hreefmainflayersfmakefupfthefkidney:
4. • Thefstifffconnectiveftissuesfthatfcomprisefthefoutermostflayerfarefthefrenalffascia.
5. • Thefintermediateflayer,forfthefperinealffatfcapsule,fstabilizesfthefkidney.
6. • Thefinnermostflayerfisfthefrenalfcapsule.
,Lab 14 The Urinary System
f f f f BIO202L
EXPERIMENTf1:fKIDNEYfFILTRATION
IntroductionfQuestions
1. Whatfspecificfpartfoffthefkidneyfdoesfthefdialysisftubingfrepresent?fWhatfisfthisfpart’sffunction?fDial
ysisftubingfisfafrepresentationfoffthefkidney'sfU-
shapedftubules.fAfnephronfisfafprominentfmorphologicalfandffunctionalfunitfoffthefkidney,fafU-
shapedftubuleffoundfinfthefkidney."Dueftofthefsemi-
permeabilityfoffitsflayer,fthefnephronffacilitatesfthefentryfandfexitfoffnumerousfionsfandfwaterfmolec
ulesffromfthefbody."
2. Whatfdoesfthefyellowffoodfcoloringfrepresentfatfthefendfoffthefexperiment?fWhatfdoesfthefCong
ofRedfrepresent?
Urinefisfindicatedfinfyellow,fwhilefbloodftracesfarefvisiblefinfredfinfthefdialysisfbag.
, Lab 14 The Urinary System
f f f f BIO202L
DatafandfObservations
Recordfyourfobservationsfasfrequiredfbyfthefexperimentalfprocedurefinftheftablefbelow.
Tablef1:fSolutionsfPresentfinfEachfContainerfBeforef60fMinutesfSubmersion
Solution DialysisfTubing Beaker
CongofRed yes no
YellowfFoodfColoring no yes
Tablef2:fSolutionsfPresentfinfEachfContainerfAfterf60fMinutesfSubmersion
Solution DialysisfTubing Beaker
CongofRed yes no
YellowfFoodfColoring no yes
ResultsfandfDiscussion
1. Whyfisfitfimportantfthatfthefkidneyffiltersfthefblood?fInfyourfresponse,fdiscussfwhatfisfbeingfrem
ovedfandfwhatfisfbeingfselectivelyfretained.
Wastesfarefexcretedffromfourfbodilyffunctions,fwhichfthefkidneysfeliminateffromfthefblood.fDependi
ngfuponfthefbodyfpartfthatfhormonesfcontrol,fthefkidneyfexcretesfandfreabsorbsfelectrolytes,fglucos
e,faminofacids,fandfotherfsmallfmolecules.fBoundfacidsfandfammoniumfionsfregulatefthefbloodfpH,f
andfthefkidneyfregulatesfthefconcentrationfoffthesefparticlesfinfthefblood.fThefkidneysffilterfureaffro
mfthefblood,fafwastefproductfoffaminofacidfsynthesisfthatfcontainsfnitrogen.fNitrogenousfbyproduct
sfoffaminofacidfsynthesisfwillfbuildfupfiffthefkidneysfcannotffilterfthefblood.fThus,fthefwastefwouldfre
mainfunfiltered.
