BIO 254 Exam 1 NEWEST
2026/2027 ACTUAL EXAM| BIO 254
EXAM 1 REVIEW WITH 100 REAL
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
ThoracicmDuctm-mCORRECTmANSWERm-mwiderm&mlonger
-mmajoritymofmdrainagem
-moriginatesmasmlrgmsac;mcisternamchyliminmthemabdm
-memptiesmintomleftmsubclavian
RightmLymphaticmDuctm-mCORRECTmANSWERm-moriginatesminmrightmthorax
-mcollectsmfrommrightmhalfmofmhead,mrightmthorax,mrightmarmm
-memptiesmintomrightmsubclavian
1.mLymphaticmsystemmismcomparablemtomwhichmothermsystem?
2.m3mFunctionsmofmLymphaticmSystem?m-mCORRECTmANSWERm1.mCirculatorymSystemm-mVEINSm
2.m(1)mp/umexcessmfluid;mreturnminterstitialmfluidmtomcardiovascularmsystemm(filter)m(2)mimmunitym(3
)mfatmabsorptionmwithmlacteals
LymphmNodesm-mCORRECTmANSWERm-mMassesmofmlymphocytesm-mTm&mBmCells
LymphaticmFlowm-mCORRECTmANSWERmCapillarym
AfferentmVessel
LymphmNodem
EfferentmVesselm
, Trunkm
Duct
SubclavianmVein
1.mWhatmaremlymphaticmcapillariesmcomposedmof?
2.mWhatmismthemfluidmcalledmoncemitmentersmthemcapillary?m-
mCORRECTmANSWERm1.msinglemlayermofmsquamousmepithelialmcellsmcalledmendothelium
2.mLymph
1.mHowmmanymlayersmareminmlymphaticmvessels?
2.mHowmismbackmflowmprevented?m
3.mWheremdomvesselsmlead?m-
mCORRECTmANSWERm1.mendothelialmliningm>mmiddlemlayerm(musclem&melasticmfibers)m>moutermlaye
rm(connectivemtissue)m
2.mVesselsmcontainmsemilunarmvalvesmtompreventmbackmflowm
3.mLymphmnodesmthenmtomtrunks
WheremdoesmLymphmgomwhenmitmleavesmthem2mducts?m-
mCORRECTmANSWERmEntersmintomvenousmsystemmandmbecomesmpartmofmplasmambeforembloodmret
urnsmtomrightmatrium
Whatmismthemrelationshipmbetweenmtissuemfluidm&mlymph?m-mCORRECTmANSWERm-
mLymphmformationmdependsmonmtissuemfluidmformation.
-
m Componentsmthatmcannotmcrossmcapmwallsmarempickedmupmbymlymphmsystemmtompreventmbuildup.
WhatmstimulatesmLymphmFlow?m-
mCORRECTmANSWERm1.mContractingmskeletalmmuscles.mSmoothmmusclemcontractsmrhythmicallym
2026/2027 ACTUAL EXAM| BIO 254
EXAM 1 REVIEW WITH 100 REAL
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
ThoracicmDuctm-mCORRECTmANSWERm-mwiderm&mlonger
-mmajoritymofmdrainagem
-moriginatesmasmlrgmsac;mcisternamchyliminmthemabdm
-memptiesmintomleftmsubclavian
RightmLymphaticmDuctm-mCORRECTmANSWERm-moriginatesminmrightmthorax
-mcollectsmfrommrightmhalfmofmhead,mrightmthorax,mrightmarmm
-memptiesmintomrightmsubclavian
1.mLymphaticmsystemmismcomparablemtomwhichmothermsystem?
2.m3mFunctionsmofmLymphaticmSystem?m-mCORRECTmANSWERm1.mCirculatorymSystemm-mVEINSm
2.m(1)mp/umexcessmfluid;mreturnminterstitialmfluidmtomcardiovascularmsystemm(filter)m(2)mimmunitym(3
)mfatmabsorptionmwithmlacteals
LymphmNodesm-mCORRECTmANSWERm-mMassesmofmlymphocytesm-mTm&mBmCells
LymphaticmFlowm-mCORRECTmANSWERmCapillarym
AfferentmVessel
LymphmNodem
EfferentmVesselm
, Trunkm
Duct
SubclavianmVein
1.mWhatmaremlymphaticmcapillariesmcomposedmof?
2.mWhatmismthemfluidmcalledmoncemitmentersmthemcapillary?m-
mCORRECTmANSWERm1.msinglemlayermofmsquamousmepithelialmcellsmcalledmendothelium
2.mLymph
1.mHowmmanymlayersmareminmlymphaticmvessels?
2.mHowmismbackmflowmprevented?m
3.mWheremdomvesselsmlead?m-
mCORRECTmANSWERm1.mendothelialmliningm>mmiddlemlayerm(musclem&melasticmfibers)m>moutermlaye
rm(connectivemtissue)m
2.mVesselsmcontainmsemilunarmvalvesmtompreventmbackmflowm
3.mLymphmnodesmthenmtomtrunks
WheremdoesmLymphmgomwhenmitmleavesmthem2mducts?m-
mCORRECTmANSWERmEntersmintomvenousmsystemmandmbecomesmpartmofmplasmambeforembloodmret
urnsmtomrightmatrium
Whatmismthemrelationshipmbetweenmtissuemfluidm&mlymph?m-mCORRECTmANSWERm-
mLymphmformationmdependsmonmtissuemfluidmformation.
-
m Componentsmthatmcannotmcrossmcapmwallsmarempickedmupmbymlymphmsystemmtompreventmbuildup.
WhatmstimulatesmLymphmFlow?m-
mCORRECTmANSWERm1.mContractingmskeletalmmuscles.mSmoothmmusclemcontractsmrhythmicallym
