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Histo SVM QUIZ 2 Part 2

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jellyskelly00's version from 2017-11-18 05:07

Section 24

Question Answer
Zones of the Anal Canal of Pigs and Carnivorescolumnar, intermediate, and cutaneous
Epithelium of Anal Canal Zonescolumnar and intermediate = nonkeratinized stratified squamous, cutaneous = keratinized stratified squamous
Anal Sacs in Carnivoresbilateral evaginations of anal mucosa
Anal Sacs are Modified Glandsmodified sweat glands
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Section 25

Question Answer
Liver CapsuleGlisson's capsule and extends to form interlobular CT for parenchyma support
Interlobular CT is Distinct in Which SpeciesPigs
Interlobular CT is Prominent in Which Areasareas containing branches of hepatic artery, portal vein, bile duct, and lymphatics
Epithelium of Sinusoids in Liversimple squamous
Liver Lobulesclassic, portal, and liver acinus
Liver Classic Lobuleplates or laminae of hepatocytes radiating from centra vein, hexagonal with portal area between 3 adjacent lobules
Liver Portal Lobulefunctional in bile secretion, triangular, portal area in center and central veins at peripheral angles
Liver Acinus Lobulemetabolic activity, diamond shaped. two central veins at opposing points
Hepatocyte Shape and Facespolyhedral with three surfaces
Hepatocyte Facesmicrovillus surface facing perisinusoidal space; canalicular bordering bile canaliculi; and contact between adjacent hepatocytes where gap junctions and desmosomes connect
Characteristics of Hepatocytesnumerous mitochondria, lysosomes, and ribosomes; well developed ER and golgi
Changes in Hepatocytes after Feedingenlarge and fill with glycogen and lipid inclusions
Specialized Macrophages in Liverkuppfer cells with one side facing sinusoid
Bile Flowbile canaliculi -> bile ductule -> interlobular bile ducts -> hepatic ducts -> bile duct
Epithelium of Bile Ductsductule and small interlobular = simple cuboidal, large interlobular, hepatic, and bile duct = simple columnar
Blood Supply to Liverportal vein from intestine for nutrients and hepatic artery for oxygenated blood travel through hepatic sinusoids to central vein and drain to hepatic vein then to caudal vena cava
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Section 26

Question Answer
Gall Bladder is Absent in which SpeciesHORSES
Structure of Gall Bladdermucosa is thrown into numerous folds in the contracted (empty) state and lined by simple columnar epithelium
Goblet Cells in Gall Bladder Only in Which SpeciesCattle
Gall Bladder Glands in Ruminantsserous or mucous
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Section 27

Question Answer
Pancreas Gland Structure and Secretioncompound tubuloalveolar; amylase, lipase, trypsin
Pancreas Centroacinar Cellssecrete bicarbonate
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Pancreas intralobular ducts not striated
Question Answer
Paccinian Corpuscles are found frequently in which speciescats
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Section 28

Question Answer
Avian Oral Cavitycornified beak attached to both jaws
Epithelium of Avian Oral Cavitykeratinized stratified squamous
Salivary Gland Structure of Avian Oral Cavitytubular mucous
Tongue Epithelium of Avian Oral Cavitykeratinized stratified squamous, ENTOGLOSSAL BONE in tongue, NO TEETH
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Question Answer
Esophagus Epitheliumkeratinized stratified squamous
Lamina Propria of Esophagusbranched tubular mucous gland
Lamina Muscularis of Esophaguslongitudinal smooth muscle
Crop of Esophagussac like diverticulum, storage organ that secretes mucous and has crop glands
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Question Answer
Stomach Sectionsproventriculus and ventriculus
Proventriculus of Stomachcolumnar cells that continue into cuboidal epi glands; have macroscopic papillae, oxynticopeptic cells that produce pepsin and HCl
Ventriculus of Stomachlined by cuticle, simple branched tubular glands, GRIND ingesta
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Question Answer
SI of Avianscontain TWO ceca with large masses of diffuse and nodular lymphatic tissue that infiltrate the lamina propria and submucosa at cecal orifice called cecal tonsils in adults; proximal ceca and colon contain villi
Avian Cloaca Divisioncoprodeum, urodeum, proctodeum lined by simple columnar
Tunica Mucosa of Cloacafolded extensively and lined by keratinized stratified squamous in the vent
Cloacal Bursasac like diverticulum of proctodeum in birds only
Cloacal Bursa Mucosal FoldsPlicae have lymphoid follicles in them
Cloacal Bursa Epitheliumpseudostratified
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Section 29

Question Answer
Kidney Functionsecretion of renin and production of hemopoietin plus filtration
Parenchyma Division of Kidneyouter cortex - dark red, inner medulla - lighter
Kidney Classificationmultilobar/multipyramidal bovine and pig but pig appears unilobar externallyl unilobar/unipyramidal kidney in cats, dogs, horses, sheep, and goat
Renal Corpuscle Compositionglomerulus + bowman's capsule, each has a vascular pole with afferent and efferent arterioles and a urinary pole where proximal convoluted tubule begins
Glomeruluscapillaries lined by porous enodthelial cells separated from podocytes by the glomerular basement membrane
Glomerular Visceral Layer Epitheliumpodocytes
Glomerular Parietal Layer Epitheliumsimple squamous epithelium
Podocyte Processespedicles
Function of Podocyte and Processesfiltration slits
Bridges to Filtration Slitsslit diaphragm = thin electron-dense layer
Filtration Barrier Componentsglomerular endothelium, glomerular basement membrane, glomerular epithelium
Proximal Convoluted and Straight Tubulessimple cuboidal or mainly columnar, microvilli, basal striations due to infolding of the membrane and alignment of the mitochondria; proximal straight tubules have less distinct brush borders
Thin Tubulessimple squamous epithelium
Distal Straight and Convoluted TubulesDCT is shorter than PCT, simple cuboidal, lumen of distal tubules larger, smaller and flatter cells, NO BRUSH BORDER
Juxtaglomerular Apparatus Compositionmacula densa from distal tubules = columnar cells and juxtaglomerular cells in afferent arteriole that are modified smooth muscle cells and extraglomerular mesangial cells
Macula Densa Functionchloride ion sensitive to regulate rate of glomerular filtration through afferent arteriole constriction
Juxtaglomerular Cells Functionproduce renin that acts on angiotensiongen to form angiotensin I that converts into angiotensin II in the lungs and causes vasocontriction of arterioles and increases blood pressure
Collecting Ducts of KidneyDCT -> arched collecting duct -> small collecting ducts -> large collecting ducts -> papillary ducts
Vasculature of KidneyRenal artery → interlobar arteries → Arcuate arteries → Interlobular arteries; Afferent arteriole → glomerulus → efferent arteriole → peritubular capiilary network (cortex) - descending vasa recta → peritubular capillary network (medulla) → ascending vasa recta (venules); Interlobular vein → arcuate vein → interlobar vein → renal vein
Urinary Passagecalyces and renal pelvis -> ureter -> bladder
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Section 30

Question Answer
Mucosa of Ureterfolded with transitional epithelium; in horses propria submucosa contains tubuloalveolar mucous glands
Tunica Muscularis of Ureterthree ill defined layers: inner and outer longitudinal and a middle circular layer
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Section 31

Question Answer
Urinary Bladder Lamina Muscularis Species Differences[resent in horses, ruminants, dogs, and pigs, ABSENT IN CATS
Urinary Bladder Smooth Muscle of Tunica Muscularisdetrusor muscle = irregular interweaved bundles
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Section X

Question Answer
3 Layers of the Eye and their PartsFibrous tunic - sclera and cornea: vascular tunic - choroid, ciliary body and iris; nervous tunic - retina
Layers of the Nervous Tunic/ Retina (10)1. pigment epithelium 2. photoreceptive layer/ rods and cons 3. external limiting membrane 4. outer nuclear layer 5. outer plexiform layer 6. inner nuclear layer 7. inner plexiform 8. ganglionic cell layer - multipolar neurons 9. optic nerve fibers 10. internal limiting membrane
Other Structures of the eyesLens and Lacrimal gland
Structure of the Lenslens capsule, lens epithelium, and lens fibers
What disorder is found in the lenscataract = the clouding of the lens
Lacrimal Gland Structuretubulo alveolar
Lacrimal Gland Secretionsserous in ruminants and cats, sero-mucous in dogs
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Question Answer
3 Parts of the Ear and their Parts1. external ear (auricle/pinna) external auditory canal 2. middle ear malleus, incus stapes, tympanic cavity auditory tube 3. internal ear bony labyrinth filled with perilymph and membranous labyrinth fillwed with endolymph
Membranous Labyrinth ComponentsMembranous ampulla, crista ampullaris, utricle, saccule,
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