OPENSTAX ANATOMY & PHYSIOLOGY
2E CH 25 URINARY SYSTEM LATEST
2026/2027 ACTUAL EXAM QUESTIONS
WITH CORRECT ANSWERS 100%
VERIFIED GRADED A+
1. medullam-mCORRECTmANSWERminnermregionmofmkidneymcontainingmthemrenalmpyramids
2. mesangialm-
mCORRECTmANSWERmcontractilemcellsmfoundminmthemglomerulus;mcanmcontractmormrelaxmto
mregulatemfiltrationmrate
3. endothelinsm-mCORRECTmANSWERmgroupmofmvasoconstrictive,m21-
aminomacidmpeptides;mproducedmbymendothelialmcellsmofmthemrenalmbloodmvessels,mmesan
gialmcells,mandmcellsmofmthemDCT
4. netmfiltrationmpressurem(NFP)m-
mCORRECTmANSWERmpressuremofmfluidmacrossmthemglomerulus;mcalculatedmbymtakingmthem
hydrostaticmpressuremofmthemcapillarymandmsubtractingmthemcolloidmosmoticmpressuremofmt
hembloodmandmthemhydrostaticmpressuremofmBowman'smcapsule
5. peritubularmcapillariesm-
mCORRECTmANSWERmsecondmcapillarymbedmofmthemrenalmportalmsystem;msurroundmthempro
ximalmandmdistalmconvolutedmtubules;massociatedmwithmthemvasamrecta
6. physiologicalmsphincterm-
mCORRECTmANSWERmsphinctermconsistingmofmcircularmsmoothmmusclemindistinguishablemfr
ommadjacentmmusclembutmpossessingmdifferentialminnervations,mpermittingmitsmfunctionmas
mamsphincter;mstructurallymweak
, 7. detrusormmusclem-
mCORRECTmANSWERmsmoothmmuscleminmthembladdermwall;mfibersmrunminmallmdirectionsmtom
reducemthemsizemofmthemorganmwhenmemptyingmitmofmurine
8. renalmfatmpadm-
mCORRECTmANSWERmadiposemtissuembetweenmthemrenalmfasciamandmthemrenalmcapsulemth
atmprovidesmprotectivemcushioningmtomthemkidney
9. renalmpyramidsm-mCORRECTmANSWERmsixmtomeightmcone-
shapedmtissuesminmthemmedullamofmthemkidneymcontainingmcollectingmductsmandmthemloops
mofmHenlemofmjuxtamedullarymnephrons
10. renalmcolumnsm-
mCORRECTmANSWERmextensionsmofmthemrenalmcortexmintomthemrenalmmedulla;mseparatesmt
hemrenalmpyramids;mcontainsmbloodmvesselsmandmconnectivemtissues
11. micturitionm-mCORRECTmANSWERmalsomcalledmurinationmormvoiding
12. oliguriam-mCORRECTmANSWERmbelowmnormalmurinemproductionmofm400-500mmL/day
13. glomerulusm-
mCORRECTmANSWERmtuftmofmcapillariesmsurroundedmbymBowman'smcapsule;mfiltersmthembl
oodmbasedmonmsize
14. glomerularmfiltrationmratem(GFR)m-mCORRECTmANSWERmratemofmrenalmfiltration
15. juxtaglomerularmapparatusm(JGA)m-
mCORRECTmANSWERmlocatedmatmthemjuncturemofmthemDCTmandmthemafferentmandmefferentm
arteriolesmofmthemglomerulus;mplaysmamroleminmthemregulationmofmrenalmbloodmflowmandmGF
R
2E CH 25 URINARY SYSTEM LATEST
2026/2027 ACTUAL EXAM QUESTIONS
WITH CORRECT ANSWERS 100%
VERIFIED GRADED A+
1. medullam-mCORRECTmANSWERminnermregionmofmkidneymcontainingmthemrenalmpyramids
2. mesangialm-
mCORRECTmANSWERmcontractilemcellsmfoundminmthemglomerulus;mcanmcontractmormrelaxmto
mregulatemfiltrationmrate
3. endothelinsm-mCORRECTmANSWERmgroupmofmvasoconstrictive,m21-
aminomacidmpeptides;mproducedmbymendothelialmcellsmofmthemrenalmbloodmvessels,mmesan
gialmcells,mandmcellsmofmthemDCT
4. netmfiltrationmpressurem(NFP)m-
mCORRECTmANSWERmpressuremofmfluidmacrossmthemglomerulus;mcalculatedmbymtakingmthem
hydrostaticmpressuremofmthemcapillarymandmsubtractingmthemcolloidmosmoticmpressuremofmt
hembloodmandmthemhydrostaticmpressuremofmBowman'smcapsule
5. peritubularmcapillariesm-
mCORRECTmANSWERmsecondmcapillarymbedmofmthemrenalmportalmsystem;msurroundmthempro
ximalmandmdistalmconvolutedmtubules;massociatedmwithmthemvasamrecta
6. physiologicalmsphincterm-
mCORRECTmANSWERmsphinctermconsistingmofmcircularmsmoothmmusclemindistinguishablemfr
ommadjacentmmusclembutmpossessingmdifferentialminnervations,mpermittingmitsmfunctionmas
mamsphincter;mstructurallymweak
, 7. detrusormmusclem-
mCORRECTmANSWERmsmoothmmuscleminmthembladdermwall;mfibersmrunminmallmdirectionsmtom
reducemthemsizemofmthemorganmwhenmemptyingmitmofmurine
8. renalmfatmpadm-
mCORRECTmANSWERmadiposemtissuembetweenmthemrenalmfasciamandmthemrenalmcapsulemth
atmprovidesmprotectivemcushioningmtomthemkidney
9. renalmpyramidsm-mCORRECTmANSWERmsixmtomeightmcone-
shapedmtissuesminmthemmedullamofmthemkidneymcontainingmcollectingmductsmandmthemloops
mofmHenlemofmjuxtamedullarymnephrons
10. renalmcolumnsm-
mCORRECTmANSWERmextensionsmofmthemrenalmcortexmintomthemrenalmmedulla;mseparatesmt
hemrenalmpyramids;mcontainsmbloodmvesselsmandmconnectivemtissues
11. micturitionm-mCORRECTmANSWERmalsomcalledmurinationmormvoiding
12. oliguriam-mCORRECTmANSWERmbelowmnormalmurinemproductionmofm400-500mmL/day
13. glomerulusm-
mCORRECTmANSWERmtuftmofmcapillariesmsurroundedmbymBowman'smcapsule;mfiltersmthembl
oodmbasedmonmsize
14. glomerularmfiltrationmratem(GFR)m-mCORRECTmANSWERmratemofmrenalmfiltration
15. juxtaglomerularmapparatusm(JGA)m-
mCORRECTmANSWERmlocatedmatmthemjuncturemofmthemDCTmandmthemafferentmandmefferentm
arteriolesmofmthemglomerulus;mplaysmamroleminmthemregulationmofmrenalmbloodmflowmandmGF
R