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Test Bank For Histology

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RespiratorySystem Test1
1.
Whichcellisaalsocalledaseptalcell?
a.Claracell
b.TypeIpneumocyte
c.TypeIIpneumocyte
d.Dustcell
e.Brushcell
Answer:c
TheClaracellisfoundintheterminalbronchioles.ThetypeIpneumocyte
isasquamousepithelialcell.Itcoversmostofthesurfaceofthealveoli.
ThetypeIIpneumocyteisalsocalledaseptalcell.ThetypeIIpneumocyte
secretessurfactant.Thedustcellisalsocalledthealveolarphagocyte.
Brushcellsareoccasionally,butrarely,seeninthealveolarepithelium.
2.
Whichcellisarespiratorymacrophage?
a.Kupffercells
b.Histiocyte
c.Dustcell
d.Langerhanscell
e.Microglia
Answer:c
Macrophagesaremononuclearphagocytes.Manytissueshaveresident
(fixed)macrophages.Fixedmacrophagesaregivenauniquename,
dependingonthetissuethattheyarelocatedin.Kupffercellsarethe
hepaticmacrophages.Histiocytesaremacrophagesseeninconnective
tissue.Dustcellsarealveolarmacrophagesfoundintherespiratorytract.
Langerhanscellsaremacrophagesseenintheskin.Microgliaarethe
centralnervoussystem macrophages.
3.
Whichcellisatypeofneuron?
a.Basalcells
b.Brushcells
c.Olfactorycells
d.Sustentacularcells
e.Alloftheabove
Answer:c
Olfactorymucosalinestheroofandportionsofthewallsofthenasal
cavity.Itcontainsseveralcelltypes:basalcells,brushcells,olfactorycells
andsustentacularcells.
Basalcellsarelocatedinthebasallamina.Brushcellsareinvolvedwith
generalsensationoftheolfactorymucosa.Olfactorycellsarebipolar
neuronsthatarethereceptorsforsmell.Sustentacularcellsaresupporting
cells.Sustentacularcellsaremostnumerouscelltypeintheolfactory
epithelium.
4.
Whatcelltypesarefoundintherespiratorymucosa?
a.Ciliatedcells
b.Gobletcells
c.Basalcells
d.Brushcells
e.Alloftheabove
Answer:e
Inman,respiratorymucosaiscomposedofciliatedpseudostratified
columnarepithelium withgobletcells.Respiratorymucosacontains
severalcelltypes:ciliatedcells,gobletcells,basalcells,andbrushcells.
Respiratorymucosaislocatedliningtherespiratorysegmentofthenasal
cavity.Itlinestheconchaeandtheparanasalsinuses.
5.
Whattypeoftissuemakesuptheepiglottis?
a.Compactbone
b.Spongybone
c.Hyalinecartilage
d.Fibrocartilage
e.Elasticcartilage
Answer:e
Theepiglottisispartofthelarynx.Itiscomposedofelasticcartilage.
6.
Whatisthesmallestairspaceoftherespiratorytree?
a.Alveolarduct
b.Alveoli
c.Alveolarsac
d.Respiratorybronchiole
e.Terminalbronchiole
Answer:b
Therespiratorytractismadeofbranchingstructures,muchlikethe
branchesofatree.Thetracheabranchesintotwobronchiwhichbranch
intosmallerbronchi.Thebronchiultimatelybranchintosmaller
bronchioles.Bronchiolesaredistinguishedfrom bronchiinthattheydonot
havecartilageandsubmucosalglands.Theterminalbronchiolesarethe
lastpartoftheairwayinwhichgasexchangedoesnotoccur.Terminal
bronchiolesleadtotherespiratorybronchioles.Therespiratorybronchioles
arethefirstsectionoftherespiratorytreethatgasexchangecanoccur.
Thealveoliductisanalogoustoathoroughfarewithmanycul-du-sacs
branchingoffofit.Attheendofthealveoliductisanalveolisac.Analveoli
sacisaclusterofalveoli,muchlikeaclusterofgrapes.Alveoliare
individualsacswheregasexchangeoccurs.
7.
Whattypeofepithelium linesthetrachea?
a.Simplesquamousepithelium
b.Simplecuboidalepithelium
c.Simplecolumnarepithelium
d.Stratifiedsquamousepithelium
e.Pseudostratifiedepithelium
Answer:e
Thetracheaislinedbypseudostratifiedsquamousepithelium.Epithelium
linesbodycavitiesandsurfaces.Pseudostratifiedsquamousepithelium is
"pseudostratified"becauseitisonlyonecelllayerthick,yetitappearstobe
stratified.Inreality,everycelltouchesthebasementmembrane.
Notefrom SarahBellham:Theprefix"pseudo"isofGreekoriginandit
meansfalseorcounterfeit.Forexample:pseudonym,pseudo-scienceor
pseudostratified.
8.
Whichstructureispartoftheconductingportionoftheairway?
a.Bronchi
b.Alveolarducts
c.Alveoli
d.Alveolarsacs
e.Respiratorybronchioles
Answer:a
Theconductingportionoftheairwayiswhereairismoved,warmedand
moistened.Thenasalcavities,pharynx,larynx,tracheaandbronchiareall
partoftheconductingportionoftheairway.
Therespiratoryportionoftheairwayiswheregasexchangeoccurs.The
respiratorybronchioles,alveolarducts,alveolarsacsandalveoliareallpart
oftherespiratoryportion.
9.
Whattypeofepithelium linesthevestibule?

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[Solved] Test Bank For Histology

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  • Submitted On 23 Jan, 2022 09:29:13
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RespiratorySystem Test1 1. Whichcellisaalsocalledaseptalcell? a.Claracell b.TypeIpneumocyte c.TypeIIpneumocyte d.Dustcell e.Brushcell Answer:c TheClaracellisfoundintheterminalbronchioles.ThetypeIpneumocyte isasquamousepithelialcell.Itcoversmostofthesurfaceofthealveoli. ThetypeIIpneumocyteisalsocalledaseptalcell.ThetypeIIpneumocyte secretessurfactant.Thedustcellisalsocalledthealveolarphagocyte. Brushcellsareoccasionally,butrarely,seeninthealveolarepithelium. 2. Whichcellisarespiratorymacrophage? a.Kupffercells b.Histiocyte c.Dustcell d.Langerhanscell e.Microglia Answer:c Macrophagesaremononuclearphagocytes.Manytissueshaveresident (fixed)macrophages.Fixedmacrophagesaregivenauniquename, dependingonthetissuethattheyarelocatedin.Kupffercellsarethe hepaticmacrophages.Histiocytesaremacrophagesseeninconnective tissue.Dustcellsarealveolarmacrophagesfoundintherespiratorytract. Langerhanscellsaremacrophagesseenintheskin.Microgliaarethe centralnervoussystem macrophages. 3. Whichcellisatypeofneuron? a.Basalcells b.Bru...
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