Lecture 12a - 1' amenizefien ef the digestive system....

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Unformatted text preview: 1' amenizefien ef the digestive system. Pharan Pharynrgeal muscles propel o flral caeityr leele tongue od inlo esophagus Mechanical breakdown. mixing with salivary secretions liver floatation of bile iimportant for lipid digestion], store :3 of nutrients, production oi cel uiar roelsr plasma proteins. clotting [actors and detoxification and Ithagocwosis Salivary glands Secretion of lubricating tluid containing Enzymes that initiate digestion Pancreas Secretion ol buffers and digestive enzymes by exocrine cells; motion at hormones by endocrine cells to regulate digestion Esophgu-s Tmnsp-ort oi loo-cl into the stomach Stomach Chemical breakdown of food by acid and enzymes; mechanical breakdown via muscular contractions Gallbladder Storage and concentration of bile Large intestine Dehydrawion and conqsnction of indigestible materials for elimination; resorption of water and electrolytes,- host defense Small intestine Enzymatic digestion and absorption of we ter. organic substrates, 1vitamins, and ions; host defense 5%05l7aé .—-’;I|'-.'i"' 1E1 Elsevler. matte e Mehlrnee: Hetlael‘s Essential Hlsl:oii.'ier.ir - www.mdattconwltcem Hair shaft Ural surface , Sltitl surface! Mil-ems glniitis Sebaclsoue gin ntls Epidetmis Drhimletis eris muscle lamina pmpna J Stratified squamous epithelium Duet of EL‘II’KI Eubn’iutue'ia Saba-news gland WIlheLIt hair follirfe Wemtanmus 1 light mists-graphs {use} at parts tit the lip. Left. The trsn‘l‘lillisn hpttler is stratiiietl ssuamtius entthslium less: with a thin Iayet of Surface natalih. UElISI'i'I'. Underlying ennneshie tissue—lamina prnpha tut—shrimps mans biped vessels lain. The highly castigated intertaee between epithelium and sennetsnie tissue shows tall papillae t.) penetrating the epithelium to take capillaries einse tn the senate. night. The external eutanenus snrtaee. at typical thin shin. senatets pi epidermis {Elli anti undsrili'ing dermis {DE}. A hair itillisle HF] and associated mi shaft {HE} tilts! seen. LElt: 130:; Right: Bin REE. {El Elsevier. matte is Hammett: Hetbet‘s Essential t'tisl:i:.~lt.‘isr.ir ‘ www.5tudaitcensult.cnm l. Llil of the lip. The cutaneaus surtace iflui and uerrnillion horder hilt] are seen: theI oral mucaus memnrana is at the too. The central core of the lip contains muscle fitters a! the ot‘nicularis oris {DD}. Labial glands {LEi are clnae lo the oral surface. it Lllll ol part ot the oral muoosa ot the inner surtaoe ot the lie. The nnniteratinizad stratified auuam nus eeilhelium lSSE] is multilayai'ed. Its llal Surface cells {arrows} retain their nuclei; its cuticidal basal cells rest so an ill-defined basement membrane lBMi. The lamina prcnria ELF] is loose. anemia.I cellular emnectwe tissue. Capillaries {can} EITEFIH into papillae in}. sans. Has. «It Lat ot the central oore of the lip. Tightiy packed mucous acrni of a iahial gland iLt'ii—a Iuhuloacinar minor salrtrarlr fiend—surmund a small duct [1L Lnur sample coluomar epithelium lines the duct. The connection of the [MCI is not seen in the plane of sectinn. hut it opens ante the anal surface. Adjacent skeletal muscle fibers of the orhicularis ens rooi are organised into lascicias. The pale area eetta'een the gland and muscle is iihreelast'tc connecihe tissue ion. 125x. ear? Ell Elsa-trier. Dualle Err Nahirheu: Matters Essential Him'tlngtir — www.5tuderttcehsult.cern Sal-t palate Paintephn ryngenl arch leula Palatcglessal arch Palatine tnnsil Festericr wall at pharynx 1' “am-"3' Finflhm- 1. Ltd of past at the cheek. Skeletal muscle filters {SH} cf the huccinatcr are seclicnec longitudinally anti transversely. Perenchyrne at a miner salivary {hutcali gland {BEi is in intervening ccnnecttlre tissue. Ellis. hisE. I- Lllll al‘ the gingha. Lighin keratinizelzl stratified still arneus epithelium {SSE} and richly vascularizec lamina pinhria {LP}: farm the ntasticatnnr cral mucasa on the surface l'liiani,r small. thin-walled hicctl vessels [Eli] are in the connective tissue. 25th. Hat. [El Heavier. matte Bi Hahirnev: New: Essential Histalflg'il' - wwwstudentmnsuitxnm T Doses-m {If tfll'IQLIE. Ell-glultis Palatine: tfll'llfi'll Lingual tunsil Feramen ctr-rum T Schunatic 51m“ Elf Cirptur'rwaliale m m. Fuliete Filifernl Bed}; Fir ragit'clrm Fu ng it'drm pa pilla T Seetinnei'taeiehud ' Inlrineic muscle mamifieetiun. Many lingual papillae glee fl'iE Mum“ 3'3"“ epithelial eun‘aee [Ep] an irregular eenteur. 2311?: l‘. Eusientacularcell '_l . "7" u" Sensory cell Taste perm Ifi'fl'fllm 'mp'n“ Stratified Epithelium rests en a lamina prepria " ' ‘ {LP}. Deep in Ul'iflEfl'jlfll'tQ Cfll'll'iEfli'l-l'fi tissue are 5W5 e'flnds 0* W" “m lssclclcs cl sHEIeIaI muscle litters {Sf-1] sectioned in difiereni planes. F's. else. «II LM d! the underul'faee at! the tangle. The entddth mueeea has a reietilreiil simple denim. The hanker- atinized stratified sdmmpus epithelium {Epi eurle'lale at many tellers pf sells and rests on a lamina prepria M] at loose CEIri neeiilre tissue. Uplle drdieciidne pi Iantllta prema mm the epithelium Idl‘m ednneetilre tissue papillae {s}. 12th:. Hflf. 1 LMuItlhe ddmlafleeeuffl'le tangle. A deep trench-like furrew H surrounds the eireumlraliate papilla {WP} on the muepsei surisce. 3811113 glands d! can Elmer {SB} drain inip the hase or each furruw uia smell duels _ . {arrows}. Deep In the lamina preprie ' ' ' " '- , " . {LP} are pimples pi skeletal muscle __ , - - " ,l :.. . h __ _ iipcrs [SH]. ads. ears. El Else-tier. mails: El tllahimee: Hetiel’s Essential Hlieiegu s www.5tufientmnsult.:um d Lilla at l'ilil‘erm {left} and lunplfnml [Hlphh papillae. Left. a layer at lceratin Dfl'r'EfS the pointed end at the fllilerm papllla [HP]. Underlying stratified aeuameue epirheiiLim {Em is a care at lamina prepria [LFl with seacrnclar‘pI epnnemiire tissue papillae a}. flight. The mushroom-shaped ltlnpifarm papilla {FLIP} hae parakerale'iraen epithelium [Ep}. Small seecindar';1 eennectiire tissue papillae {a} emanate hem a central care at lamina prepn'a [LP]. Lelt: Fae; Highl: Edi-c. HaE «1 Lil of a eimmrrerlla'lre papilla. anlrerali niaed etral'ciied squamous epithelium {Ep}. whim has several taste buds embedded in the lateral margins [errant severe the papilla. and a deep lUITEI'r'r' H encircles it. Underpian Ianirta preprla [LP] is lease. ricth eeIIUIar pennectiss asaue. Serena planes of trail Earner tSEi are in deeper areas at the connective tissue. Their watery secretions help flush cellular pearls tram the furrow. te tleller emcee Iasle nude ta pustatartr stimuli. it] x. es}. T Secllen through fllaauft palate. Triwnswrse palal'inc [Ll-Ida Phan-ngeal EUI'I-E'LCL' Pseudaslralil'iecl rll rared- mlumnar epithelium H a rd palale Palatine prance-s5 If I. elmaailia __ Hilatirie glands Herizeriml place all palalim—z Ian-Ila ' Mixed glands lnaaall ' -‘ Mus-culaluic [slrialc-dl [center we“ :- ih’llflilifli muscle a], 1 :5: Here mater m uscle Mun-cue glands lc-rall _ . '- Eleni: tissue layer boll. palale I. I I -_. anmprepnn _. I Stratified - squamrJus eprthellurn Lia-u Ia Palatine lensil We .1 1 Llil at me oral all-lace of the hard palau. Stratified eauameue 1 Llil at part al‘ a palatine gland. Pale rnuccua celle make up each ecilhelium [En] cf the muccca ie anhclreraaneee. Ly-mchccirtee muccue eciriuc {HA1 Mere deeply ecenicchilic. flat myaepilnelial cells My] inlillrale the richly uaemlanaerl lamina arcane [LP]. Conical ccnnecliue are aeece‘alea enlh the ease cl each acinue. a duel i-l. ecclicnee traneuereelzir. heaue capillae [an-ewe} cratniile late the epithelium. Pan ci a palatine ccneiete cf one row or celurnnar ceilhelial calla around a central lumen. glam—canceling cf ccllecficrc cf pale mucous ecini [Illa] and a duct 550x. ace. iii—Is In the wnmuccee. fills-a. ea El Else'irlen Dualle Bi Mahlrnev: Niel-ten“: Essential Histclflglr - www.ctudmtmngmtmm Rant [:Pnlrall mnalfi {unwitting t'ctisuls and Ill-WE: \ r . ._ _ Emir" 9| . ' .. -' Mine and deulinal tuhu les- (kIn-nruhlarr Inga-1 Dental pulp mnlaining tmwls .tnrl n-rrr-t-IH. _ GII'rgitt-Hl lguntl Epithelium [Etralrftcd] “'"'-"" ' " - : Lamina proprin of gingit-J (gum: -' ' ' ' [mandibular ctr mat-rillan- lerlO-S—llwml F'hflcrtlLt-n'tal tttembntnu CPntettium 1' v g kg? {fl 1' Mimi Eurarttirrn Lt'tl't “pp-Pr i K 07 f . permanent ‘I I - n 1uutl‘t: __ _ ' _ i __J J ' _J LeFl law-er -. , 5' - ., .. pemunenr ' " l l 1 It [EL-ill: . '- | l r. F I I . t ft-rtlrnl Lnlr-ritl I 3 I I! 1 1lr—Lllr—IIIF i—v—r' Incisurs Camnus F'mnolarr- molars Ift‘mpr'drl «If Scanning autumn mlcmgraph {SEEM} at enamel. Trgntltr packed Enamel runs are fractured transmew nuts} and lungitudinally {In}. QSUx. rmrflfiyulflr. rt H. raw Dr SEM n! daniin. Dentinal tubules {m}: are man in the transverse plane. QED‘K. lflmnraiyaf Dr. R H. Dnttr} {El Elseuler. matte Br Mahirneu: Net-tens Ewential l-fislzrzrlclmrr L www.mdentconmltnmm Jr- LII of part of an enamel organ with details of the dentinoenemel junction. Tall columnar arneleol asts slim] form one row on the outer aspect of die enamel organ. They have basally located nuclei and thin apical niojectiooa celled Tomes' processes lTP} that extend toward a thin layer or iigl'ltty stained preenamel tPE]. which is the organic matrix of newly formed enamel. a thicker layer of lully mineralized enamel [Ens more dandy stained. borders the preenernel. tin the opposite side. a layer oi differentiating odontoblasts {EH} is apposed to a thin. lightly stained layer at predentin {any Thin apical processes ol odontohlasts proiect across predendn into dentin {De}. which appears darker and radially striate a thin. clear amiactual space {arrows} merits the dentinoertamel junction. E’Et‘lx. Hate. El Elseuier. Goalie Bi Nahirney: Hatters Essential Hiiolc-gy — www.5tudentconsult.cnrn «I LII of an enamel organ at the bell stages! ddontngeneaia. Dutside. one layer of antelotelasts [Am] is closely apposed to newly formed. darker enamel En]. Deeper in the organ. odtmtoolasts tfld]. Which are differentiated from mesencttymal nails. are at the other margin of the dental papilla [DP]. They form one row of cells. neat to newly formed dentin {Be}. in this stage oi tooth development. the papilla is a mass ol primitiye mesenchymal cells. which later become dental pulp. 933:. Ml". '1 Ltd at part [if a developing tenth showing details at dentin. UtiE-I‘IDDIHSIS ifldi are class he tier-tin {De}. wit-eh is intensely essinnphiiit: hesause ni ectianen in its matrix These cells have ihii‘. apical preeesses [eneirdedt that enter dentin in eentinal tubules [arrow-'51:. which appear as linear strands running thraugn the dentin. ttesenttntrntsl eetls in the dental pagan iDP] will later Ila-Tn dental snip. Edflx. ‘I' Part of a mature human tenth. Enamel setters dentin at the era-an oi the tenth tne dentincenatnel junction [arrows] {ml-ts seallemd. and him attachment ei ensntel tn dentin at this interface :s required ier teeth turretien =n rnastieatten Eliziinueltr enettted. ill-estated lines tarrdwheads} in enamel are enamel ratis. their arrangement enntrasts I.tttlt relat'uettr dai it, naratiei seminal tubules it'- dent-n SCIEIJ-z. {Frat-tr: unstained .Et-i't‘iii-l'i'. «I High-resolution SEMI ni‘ dentinel tubules. Mant- dentists] tuiJules run ilttnugii the dentin [Elie] matrix. The 3- in 4-timaiarneter nraeesses at edantselasts ifldi are in the tubules E'Clliltie. get-mete ru'i'ir. i'? .ii' .I'Jmtri Ell Elseeier. (Nelle Et Nahirneu: Hustler‘s Essential Histeleigtr — www.5‘tuderttmnsult.cem ...
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This note was uploaded on 01/04/2012 for the course ANT 511 taught by Professor Thomas during the Spring '10 term at Philadelphia College of Osteopathic Medicine.

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Lecture 12a - 1' amenizefien ef the digestive system....

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