BIOS251 Week 8 Exam 3 – Alternate Version
o o o o o o o
Anatomy & Physiology I | Chamberlain University
o o o o o o
100 Verified Questions with Correct Answers and Detailed
o o o o o o o
Rationales
o
TABLE OF CONTENTS
o o
Section Topic oArea Questions
Section o1 Integumentary oSystem 1-20
Section o2 Skeletal oSystem 21-40
Section o3 Muscular oSystem 41-65
Section o4 Nervous oSystem 66-85
Section o5 Special oSenses oand oEndocrine 86-100
SECTION 1: Integumentary System (Questions 1-20)
o o o o o
,Question o1
Which oof othe ofollowing ois othe omost osuperficial olayer oof othe oepidermis?
A) oStratum obasale
B) oStratum ospinosum
C) oStratum ogranulosum
D) oStratum ocorneum
Correct oAnswer: oD) oStratum ocorneum
Rationale: oThe ostratum ocorneum ois othe ooutermost olayer oof othe oepidermis,
consisting oof o20-30 olayers oof odead, oflattened okeratinocytes. oIt oprovides oa otough,
o
waterproof oprotective obarrier o.
o
Question o2
Keratin ois oproduced oby owhich ocells oin othe oepidermis?
A) oMelanocytes
B) oKeratinocytes
C) oLangerhans ocells
D) oMerkel ocells
Correct oAnswer: oB) oKeratinocytes
Rationale: oKeratinocytes oare othe omost oabundant ocells oin othe oepidermis oand
produce othe oprotein okeratin, owhich ogives oskin oits ostrength, owaterproofing, oand
o
protective oproperties o.
o
Question o3
Which oskin olayer ocontains oblood ovessels, onerve oendings, oand ohair ofollicles?
,A) oEpidermis
B) oDermis
C) oHypodermis
D) oStratum ocorneum
Correct oAnswer: oB) oDermis
Rationale: oThe odermis ois othe odeeper olayer oof oskin, ocomposed oof odense oirregular
connective otissue, oand ocontains oblood ovessels, onerves, ohair ofollicles, oglands, oand
o
sensory oreceptors o.
o
Question o4
The oarrector opili omuscle ois oresponsible ofor:
A) oSweat osecretion
B) oSebum oproduction
C) oGoosebumps
D) oHair ogrowth
Correct oAnswer: oC) oGoosebumps
Rationale: oThe oarrector opili ois oa osmooth omuscle oattached oto oeach ohair ofollicle. oWhen
it ocontracts, oit ocauses othe ohair oto ostand oupright o(piloerection), ocreating
o
"goosebumps" oand ohelping otrap owarm oair o.
o
Question o5
Which otype oof oskin ocancer ois othe omost odangerous oand omost olikely oto ometastasize?
A) oBasal ocell ocarcinoma
B) oSquamous ocell ocarcinoma
, C) oMalignant omelanoma
D) oActinic okeratosis
Correct oAnswer: oC) oMalignant omelanoma
Rationale: oMalignant omelanoma oarises ofrom omelanocytes oand ois othe omost
dangerous oform oof oskin ocancer. oIt ois ohighly ometastatic oand oaccounts ofor othe
o
majority oof oskin ocancer odeaths. oThe oABCDE orule o(Asymmetry, oBorder oirregularity,
o
Color ovariation, oDiameter o>6 omm, oEvolution) oaids oin odetection o.
o
Question o6
What ois othe oprimary ofunction oof oeccrine osweat oglands?
A) oProduce osebum
B) oProduce oearwax
C) oRegulate obody otemperature
D) oProduce opheromones
Correct oAnswer: oC) oRegulate obody otemperature
Rationale: oEccrine o(merocrine) osweat oglands oare odistributed othroughout othe obody
and oproduce owatery osweat othat ocools othe obody othrough oevaporation, oplaying oa okey
o
role oin othermoregulation o.
o
Question o7
Which ovitamin ois osynthesized oin othe oskin oupon oexposure oto oUV oradiation?
A) oVitamin oA
B) oVitamin oB12
C) oVitamin oC
D) oVitamin oD
o o o o o o o
Anatomy & Physiology I | Chamberlain University
o o o o o o
100 Verified Questions with Correct Answers and Detailed
o o o o o o o
Rationales
o
TABLE OF CONTENTS
o o
Section Topic oArea Questions
Section o1 Integumentary oSystem 1-20
Section o2 Skeletal oSystem 21-40
Section o3 Muscular oSystem 41-65
Section o4 Nervous oSystem 66-85
Section o5 Special oSenses oand oEndocrine 86-100
SECTION 1: Integumentary System (Questions 1-20)
o o o o o
,Question o1
Which oof othe ofollowing ois othe omost osuperficial olayer oof othe oepidermis?
A) oStratum obasale
B) oStratum ospinosum
C) oStratum ogranulosum
D) oStratum ocorneum
Correct oAnswer: oD) oStratum ocorneum
Rationale: oThe ostratum ocorneum ois othe ooutermost olayer oof othe oepidermis,
consisting oof o20-30 olayers oof odead, oflattened okeratinocytes. oIt oprovides oa otough,
o
waterproof oprotective obarrier o.
o
Question o2
Keratin ois oproduced oby owhich ocells oin othe oepidermis?
A) oMelanocytes
B) oKeratinocytes
C) oLangerhans ocells
D) oMerkel ocells
Correct oAnswer: oB) oKeratinocytes
Rationale: oKeratinocytes oare othe omost oabundant ocells oin othe oepidermis oand
produce othe oprotein okeratin, owhich ogives oskin oits ostrength, owaterproofing, oand
o
protective oproperties o.
o
Question o3
Which oskin olayer ocontains oblood ovessels, onerve oendings, oand ohair ofollicles?
,A) oEpidermis
B) oDermis
C) oHypodermis
D) oStratum ocorneum
Correct oAnswer: oB) oDermis
Rationale: oThe odermis ois othe odeeper olayer oof oskin, ocomposed oof odense oirregular
connective otissue, oand ocontains oblood ovessels, onerves, ohair ofollicles, oglands, oand
o
sensory oreceptors o.
o
Question o4
The oarrector opili omuscle ois oresponsible ofor:
A) oSweat osecretion
B) oSebum oproduction
C) oGoosebumps
D) oHair ogrowth
Correct oAnswer: oC) oGoosebumps
Rationale: oThe oarrector opili ois oa osmooth omuscle oattached oto oeach ohair ofollicle. oWhen
it ocontracts, oit ocauses othe ohair oto ostand oupright o(piloerection), ocreating
o
"goosebumps" oand ohelping otrap owarm oair o.
o
Question o5
Which otype oof oskin ocancer ois othe omost odangerous oand omost olikely oto ometastasize?
A) oBasal ocell ocarcinoma
B) oSquamous ocell ocarcinoma
, C) oMalignant omelanoma
D) oActinic okeratosis
Correct oAnswer: oC) oMalignant omelanoma
Rationale: oMalignant omelanoma oarises ofrom omelanocytes oand ois othe omost
dangerous oform oof oskin ocancer. oIt ois ohighly ometastatic oand oaccounts ofor othe
o
majority oof oskin ocancer odeaths. oThe oABCDE orule o(Asymmetry, oBorder oirregularity,
o
Color ovariation, oDiameter o>6 omm, oEvolution) oaids oin odetection o.
o
Question o6
What ois othe oprimary ofunction oof oeccrine osweat oglands?
A) oProduce osebum
B) oProduce oearwax
C) oRegulate obody otemperature
D) oProduce opheromones
Correct oAnswer: oC) oRegulate obody otemperature
Rationale: oEccrine o(merocrine) osweat oglands oare odistributed othroughout othe obody
and oproduce owatery osweat othat ocools othe obody othrough oevaporation, oplaying oa okey
o
role oin othermoregulation o.
o
Question o7
Which ovitamin ois osynthesized oin othe oskin oupon oexposure oto oUV oradiation?
A) oVitamin oA
B) oVitamin oB12
C) oVitamin oC
D) oVitamin oD
