Chapter 6 integumentary system
Memmler's the human body Exam
Questions and Answers
Integumentary iiSystem ii- iiAnswers ii-First iiline iiof iidefense, iiprotective iicovering, iilargest
iiorgan iiin iiyour iibody
nerve iiendings ii- iiAnswers ii-provide iisafety iiby iisending iimessages iito iithe iibrain
dermis ii- iiAnswers ii-tough iiand iileathery iilayer iiof iithe iiskin, iielastic iiconnective iitissue,
ii"true iiskin", iiblood iivessels, iiglands, iireceptors
Subcutaneous ii- iiAnswers ii-Fat iilayer iiconnects iiskin iito iimuscle, iiinsulates iiand
iiabsorbs iishock, iisuperficial iifascia
Function iiof iithe iiIntegumentary iiSystem ii- iiAnswers ii-protect, iiwater iibalance, iitemp
iiregulation, iiwaste iidisposal, iireceptor iiorgans, iiblood iireservoir, iiVitamin iiD iiproduction
epidermis iiinformation ii- iiAnswers ii-avascular, iistratified iisquamous iiepithelial iitissue,
iicomplete iiregeneration iievery ii35-45 iidays, iithinner iion iiscalp iiand iiarmpit iithan iisole iiof
iifood, iicells iiof iiepidermis
What iiare iithe iilayers iiof iithe iiepidermis? ii(bottom iilayer iito iitop iilayer) ii- iiAnswers ii-
Stratum iiBasale/ iiStratum iiGerminativum, iiStratum iiSpinosm, iiStratum iiGranulosm,
iiStratum iiLucidum, iiStratum iiCorneum
What iiis iiunique iiabout iithe iilayers iiof iiepidermis? ii- iiAnswers ii-Sheds iiitself iiup, iidies iiat
iithe iibottom iiand iigoes iiup
What iiare iicharacteristics iiof iithe iiStratum iiBasle/Stratum iiGerminatium? ii- iiAnswers ii-
Basal iiLayer iiof iicells, iiactively iidivides iito iireplace iiold iicells, iistrata=bedsheet iideepest
iilayer, iisingle iirow iiof iicells ii(mostly iistem iicells) ii10-25% iimelanocytes(secrete
iimelanin), iiamt iiof iimelanin=skin iicolor, iiamino iiacid iityrosine iiconverts iimelanin
iigranules, iialbinism=genetic iiabsence iiof iityrosinase
Stratum iiSpinosum ii- iiAnswers ii-Spiny iilayer, iiseveral iicell iilayers iithick, iimostly
iiLangerhans iicells iisurrounded iiby iiKeratinocytes iiwith iispiny iiprojections ii(prickle iicells),
iitonofilaments ii(tension iifilaments), iiTension iiresisting iiprotein
Stratum iiGranulosum ii- iiAnswers ii-Granular iiLay, iitough iilayer, ii3-5 iilayers iiof iiflattened
iikeratinocytes, iikeratohyaline iigranules-formation iiof iikeratin, iilamellated
, iigranules=waterproofing iiglycolipid, iiwater iiresistant iilayer, iislows iiwater iiloss iifrom
iibody, iireceives iinutrients iifrom iitissue iifluids
Stratum iiLucidum ii- iiAnswers ii-clear iilayer, iiabsent iiin iithin iiskin, iithickest iiin iifeet iiand
iipalm iisoles, iimainly ii2-3 iirows iiof iiflattened iidead iikeratinocytes, iinuclei iiabsent, iieleidin
iiin iicytoplasm= iiwater iibarrier
Stratum iiCorneum ii- iiAnswers ii-horny iilayer, iioutermost iilayer, iimostly iidead
iikeratinocytes iior iikeratin iifilled iiplasma iimembranes iisacs, ii20-30 iicell iilayers iithick, ii3/4
iiepidermal iithickness, iiprotect iiagainst iiabrasion iiand iipenetration, iiglycolipid=waterproof
iicoat, iiprotects iideeper iicells, iidandruff=dry iiskin iishedding=40lbs iiin iilifetime,
iihyperkeratosis=thick iidry iiscaly iiskin ii(scalp, iielbows, iibottom iiof iifeet)
What iido iiarteries iido? ii- iiAnswers ii-feed iinutrients iiand iioxygen iito iithe iibody
What iido iiveins iido? ii- iiAnswers ii-gets iirid iiof iiwaste iiproducts iiand iiexcessive iifluids
dermal iipapillae ii- iiAnswers ii-toe iiand iifingerprints iino iitwo iiare iialike
Subcutaneous iiLayer ii- iiAnswers ii-fat iiserves iiinsulation iiand iistores iireserves, iiwhere
iiinsulin iiinjections iigo ii(under iivessels) iimust iibe iibefore iimuscle
What iiare iithe iiaccessory iistructures iiof iithe iiIntegumentary iiSystem? ii- iiAnswers ii-
glands, iihair, iiand iinails
hair ii- iiAnswers ii-Non iiliving iimade iiwith iikeratine, iihair iishaft ii(root) iiattached iito iia
iipapillar iimuscle, iiwhen iihair iistands iiup iion iithe iien ii(either iicold/scared) iicauses iimore
iiprotection iiand iiinsulation iito iiincrease iitemp ii(goose iibumps) ii"running iichills" iigenerally
iishedding iibacteria=increase iibody iitemps
What iiis iithe iiappropriate iitemperature iito iibegin iigiving iiTylenol? ii- iiAnswers ii-101 iior
ii101/5
What iiare iithe iilayers iiof iithe iiepidermis? ii(top iito iibottom) ii- iiAnswers ii-Stratum
iiCorneum, iiStratum iiLucidum, iiStratum iiGranlosum, iiStratum iiSpinosum, iiStratum
iiBasale/Stratum iiGerminatium
Sebaceous iiGlands ii- iiAnswers ii-saclike iistructures iithat iihas iian iioily iisecretion iithat
iilubricates iithe iiskin iiand iihair iiand iiprevents iidrying
Sebum ii- iiAnswers ii-Oily iisecretion iifrom iisebaceous iiglands
Vernix iiCaseosa ii- iiAnswers ii-a iisecretion iibabies iiare iiborn iiin iithat iiresembles iicream
iicheese
Meibomian iiGlands ii- iiAnswers ii-produces iia iisecretion iithat iilubricates iithe iieyes