Histology NBME Exam Full Questions With
Correct Answers 2024
1.Nuclear epores:
A)Combine eto eform ea ehexagonal estructure
B)Have e50nm ein ediameter
C)Their enumber eis enot econnected ewith ecellular eactivity
D)Nuclear elamina eare econnected eto etheir einner erings
E)A eand eC eare ecorrect
F)B eand eD eare ecorrect e- ecorrect eanswer.E)A eand eC eare ecorrect
The econducting ezone eof ethe erespiratory esystem:
A) eIncludes ethe eupper eairways, etrachea eand ethe ebronchial etree e(including ethe eterminal
ebronchioles)
B) eIs edesigned efor eairflow eand erespiration
C) eIncludes eonly ethe enose eand ethe epharynx
D) eIs edesigned efor eolfactory
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.A) eIncludes ethe eupper eairways, etrachea eand
ethe ebronchial etree e(including ethe eterminal ebronchioles)
***The ebronchial etree estarts ewith ethe eprimary ebronchi:
A)And eends ewith ethe erespiratory ebronchioles
B) eAnd eon eeach esection eis elined ewith ethe esimple ecolumnar eepithelium
C) eAnd eis ecomposed eof esubmucosa ewith eplates eof efibrocartilage
D) eAnd eis epart eof ethe econducting eportion
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eAnd eis epart eof ethe econducting eportion
***The efeature eof eskeletal emuscles eis:
A) eComposed eof emononucleated ecells
B) eHave emyofibrils ethat edoes enot epossess eA ebands
C) eAre ecomposed eof ebundles eof emultinucleated efibers
D) eTheir econtraction eis eslow eand enot esubject eto evoluntary econtrol
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.C) eAre ecomposed eof ebundles eof
emultinucleated efibers
,***In ethe eskeletal emuscle ethin efilaments eare ecomposed eof:
A) eActin
B) eMyosin
C) eTropomyosin
D) eLight eand eheavy echains
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***The econtraction eof eskeletal emuscle erequires:
A) eGTP
B) eATP
C) eMg eions
D) eCa eions
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.F) eB eand eD eare ecorrect
***Sarcomere:
A) eIs ethe ebasic econtractile eunit eof eskeletal emuscle
B) eIs ethe ebasic econtractile eunit eof esmooth emuscle
C) eConsist eof ethick eand ethin efilaments
D) eExtends efrom eA eband eto eM eline
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***What ecell etype esecretes eACTH?
A) eLactotropic ecells
B) eThyrotropic ecells
C) eSomatotropic ecells
D) eCorticotropic ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eCorticotropic ecells
***Which eof ethe efollowing ephrases econcerning eosteocytes eare ecorrect:
A) eOval eactive ecells
B) ePlaced ein eHowship's elacunae
C) eSecrete eosteoid
D) eAlmond-shaped ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eAlmond-shaped ecells
***Periosteum econsists eof:
A) eOuter elayer eof ecollagen efibers eand efibroblasts
B) eOuter elayer eof eosteoprogenitor ecells
C) eInner elayer eof eosteoprogenitor ecells
D) eInner elayer eof ecollagen efibers eand efibroblasts
E) eA eand eC eare ecorrect
,F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***Which eof ethe efollowing ephrases econcerning eintramembranous eossification eare
ecorrect:
A) eIs esource eof emost eof ethe eflat ebones
B) eIs esource eof emost eof ethe elong ebones
C) eBegins efrom emesenchymal econdensation
D) eStarts efrom ethe ebone ecollar eformation
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***Which ecell etype eare einvolved ein ethe esecretion ethyroglobulin?
A) ePrincipal ecell
B) eOxyphil ecell
C) eParafollicular ecells
D) eFollicular ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eFollicular ecells
***Which epart ethe eadrenal egland esecretes eglucocorticoids?
A) eChromaffin ecells
B) eZona ereticularis
C) eZona eglomerulosa
D) eZona efasciculata
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eZona efasciculata
***Which eof ethe efollowing eis eNOT ea echaracteristic eof ethe eendocrine esystem?
A) eProducts esecreted einto eblood
B) eGlands ewith educts
C) eSecretes ehormones
D) eSecretory eactivity eof eendocrine egland eis econtrolled
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.B) eGlands ewith educts
***Which eof ethe efollowing ecells ecan ebe eclassified eas ean eacidophil?
A) eGonadotropic ecells
B) eCorticotropic ecells
C) eThyrotropic ecells
D) eLactotropic ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eLactotropic ecells
***The eplasma emembrane econsists eof ethe efollowing eelements eexcept:
A) eTransmembrane eproteins
B) ePeripheral eproteins
, C) eCholesterol
D) emicrofibers
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) emicrofibers
***The eglycocalyx ecan ebe edefined eas:
A) eThe emasses eof eextracellular ematrix
B) eBasement emembrane erich eis ecollagen
C) eLayer emade eof ecarbohydrate echains elinked
D) eA ethin esheath eof eactin efilaments elocated ebeneath ethe ecell emembrane
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.C) eLayer emade eof ecarbohydrate echains elinked
***A eprocess eby ewhich eliquid edroplets eare eingested eby eliving ecells eis:
A) eActive etransport
B) ePhagocytosis
C) ePinocytosis
D) eFacilitated ediffusion
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.C) ePinocytosis
***Cytoplasmic estructures econsisting eof e2 ecentral emicrotubules esurrounded eby e9
emicrotubule edoublets ewere erecognized eas:
A) eCilia
B) eMicrovilli
C) eAxoneme
D) eCentrioles
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***Which eof ethe efollowing ehas ea erigid ewall ecomposed eof e13 eprotofilaments estrands?
A) eMicrotubule
B) eMicrofilament
C) eNeurofilament
D) ekeratin
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.A) eMicrotubule
***Which eof ethe efollowing ephrases econcerning eendochondral eossification eis/are ecorrect: e
A. eIt eis ethe esource eof emost eof ethe eflat ebones e
B. eIt eis esource eof emost elong ebones e
C. eIt ebegins efrom emesenchymal econdensation e
D. eStarts efrom ethe ebone ecollar eformation e
E. eA eand eC eare ecorrect e
F. eB eand eD eare ecorrect e- ecorrect eanswer.F. eB eand eD eare ecorrect
Correct Answers 2024
1.Nuclear epores:
A)Combine eto eform ea ehexagonal estructure
B)Have e50nm ein ediameter
C)Their enumber eis enot econnected ewith ecellular eactivity
D)Nuclear elamina eare econnected eto etheir einner erings
E)A eand eC eare ecorrect
F)B eand eD eare ecorrect e- ecorrect eanswer.E)A eand eC eare ecorrect
The econducting ezone eof ethe erespiratory esystem:
A) eIncludes ethe eupper eairways, etrachea eand ethe ebronchial etree e(including ethe eterminal
ebronchioles)
B) eIs edesigned efor eairflow eand erespiration
C) eIncludes eonly ethe enose eand ethe epharynx
D) eIs edesigned efor eolfactory
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.A) eIncludes ethe eupper eairways, etrachea eand
ethe ebronchial etree e(including ethe eterminal ebronchioles)
***The ebronchial etree estarts ewith ethe eprimary ebronchi:
A)And eends ewith ethe erespiratory ebronchioles
B) eAnd eon eeach esection eis elined ewith ethe esimple ecolumnar eepithelium
C) eAnd eis ecomposed eof esubmucosa ewith eplates eof efibrocartilage
D) eAnd eis epart eof ethe econducting eportion
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eAnd eis epart eof ethe econducting eportion
***The efeature eof eskeletal emuscles eis:
A) eComposed eof emononucleated ecells
B) eHave emyofibrils ethat edoes enot epossess eA ebands
C) eAre ecomposed eof ebundles eof emultinucleated efibers
D) eTheir econtraction eis eslow eand enot esubject eto evoluntary econtrol
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.C) eAre ecomposed eof ebundles eof
emultinucleated efibers
,***In ethe eskeletal emuscle ethin efilaments eare ecomposed eof:
A) eActin
B) eMyosin
C) eTropomyosin
D) eLight eand eheavy echains
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***The econtraction eof eskeletal emuscle erequires:
A) eGTP
B) eATP
C) eMg eions
D) eCa eions
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.F) eB eand eD eare ecorrect
***Sarcomere:
A) eIs ethe ebasic econtractile eunit eof eskeletal emuscle
B) eIs ethe ebasic econtractile eunit eof esmooth emuscle
C) eConsist eof ethick eand ethin efilaments
D) eExtends efrom eA eband eto eM eline
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***What ecell etype esecretes eACTH?
A) eLactotropic ecells
B) eThyrotropic ecells
C) eSomatotropic ecells
D) eCorticotropic ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eCorticotropic ecells
***Which eof ethe efollowing ephrases econcerning eosteocytes eare ecorrect:
A) eOval eactive ecells
B) ePlaced ein eHowship's elacunae
C) eSecrete eosteoid
D) eAlmond-shaped ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eAlmond-shaped ecells
***Periosteum econsists eof:
A) eOuter elayer eof ecollagen efibers eand efibroblasts
B) eOuter elayer eof eosteoprogenitor ecells
C) eInner elayer eof eosteoprogenitor ecells
D) eInner elayer eof ecollagen efibers eand efibroblasts
E) eA eand eC eare ecorrect
,F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***Which eof ethe efollowing ephrases econcerning eintramembranous eossification eare
ecorrect:
A) eIs esource eof emost eof ethe eflat ebones
B) eIs esource eof emost eof ethe elong ebones
C) eBegins efrom emesenchymal econdensation
D) eStarts efrom ethe ebone ecollar eformation
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***Which ecell etype eare einvolved ein ethe esecretion ethyroglobulin?
A) ePrincipal ecell
B) eOxyphil ecell
C) eParafollicular ecells
D) eFollicular ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eFollicular ecells
***Which epart ethe eadrenal egland esecretes eglucocorticoids?
A) eChromaffin ecells
B) eZona ereticularis
C) eZona eglomerulosa
D) eZona efasciculata
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eZona efasciculata
***Which eof ethe efollowing eis eNOT ea echaracteristic eof ethe eendocrine esystem?
A) eProducts esecreted einto eblood
B) eGlands ewith educts
C) eSecretes ehormones
D) eSecretory eactivity eof eendocrine egland eis econtrolled
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.B) eGlands ewith educts
***Which eof ethe efollowing ecells ecan ebe eclassified eas ean eacidophil?
A) eGonadotropic ecells
B) eCorticotropic ecells
C) eThyrotropic ecells
D) eLactotropic ecells
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) eLactotropic ecells
***The eplasma emembrane econsists eof ethe efollowing eelements eexcept:
A) eTransmembrane eproteins
B) ePeripheral eproteins
, C) eCholesterol
D) emicrofibers
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.D) emicrofibers
***The eglycocalyx ecan ebe edefined eas:
A) eThe emasses eof eextracellular ematrix
B) eBasement emembrane erich eis ecollagen
C) eLayer emade eof ecarbohydrate echains elinked
D) eA ethin esheath eof eactin efilaments elocated ebeneath ethe ecell emembrane
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.C) eLayer emade eof ecarbohydrate echains elinked
***A eprocess eby ewhich eliquid edroplets eare eingested eby eliving ecells eis:
A) eActive etransport
B) ePhagocytosis
C) ePinocytosis
D) eFacilitated ediffusion
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.C) ePinocytosis
***Cytoplasmic estructures econsisting eof e2 ecentral emicrotubules esurrounded eby e9
emicrotubule edoublets ewere erecognized eas:
A) eCilia
B) eMicrovilli
C) eAxoneme
D) eCentrioles
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.E) eA eand eC eare ecorrect
***Which eof ethe efollowing ehas ea erigid ewall ecomposed eof e13 eprotofilaments estrands?
A) eMicrotubule
B) eMicrofilament
C) eNeurofilament
D) ekeratin
E) eA eand eC eare ecorrect
F) eB eand eD eare ecorrect e- ecorrect eanswer.A) eMicrotubule
***Which eof ethe efollowing ephrases econcerning eendochondral eossification eis/are ecorrect: e
A. eIt eis ethe esource eof emost eof ethe eflat ebones e
B. eIt eis esource eof emost elong ebones e
C. eIt ebegins efrom emesenchymal econdensation e
D. eStarts efrom ethe ebone ecollar eformation e
E. eA eand eC eare ecorrect e
F. eB eand eD eare ecorrect e- ecorrect eanswer.F. eB eand eD eare ecorrect
