Stratified EpitheliumHas More Than One Cell Layernamed by shape ofapical (surface)cellsdeepest cells (basal cells)sitonbasementmembrane variationcFree surfaceMoiststratifiedsquamousepithelial cellNucleiBasementmembraneFreesurfaceMoiststratifiedsquamous epithelial cellNucleiBasementmembrane(d)Stratifiedsquamousepithelium
Stratified Epithelium Has More Than One Cell Layer named by shape of apical (surface) cells deepest cells (basal cells) sit on basement membrane variations
PseudostratifiedEpitheliumappears to have more than one cell layer(but only has one layer)CopyrighteThe McGraw-Hi Companies,inc.Permision required for.reproductionor displayCiliaFreesurfaceGoblet cell containing mucusPseudostratifiedcolumnar epithelial cellNucleusBasementmembraneCiliaFreesurfaceGoblet cell containingmucusPseudostratifiedcolumnarepithelialcellNucleusBasementmembraneLM413X(g)Pseudostratifiedcolumnarepithelium
Pseudostratified Epithelium appears to have more than one cell layer (but only has one layer)
ShapeSquamousSguamous(squashed)福Allows rapid diffusion ofsubstances:secretesserous fluidCuboidalCuboidal (square)Absorption & secretion;可DODDproducesmucusColumnar(rectangular)ColumnarAbsorption & secretion;secretionofmucusOftenciliated
Shape Squamous (squashed) Allows rapid diffusion of substances; secretes serous fluid Cuboidal (square) Absorption & secretion; produces mucus Columnar (rectangular) Absorption & secretion; secretion of mucus Often ciliated
TransitionalEpitheliumOastratified epitheliumwith cells that changeshape.Olines organs, such as the urinary bladder, thatchangeshapeAs the tissue is stretched, the cells changefrom cuboidal to squamous and the number oflayersofcellsdecreasesonalHenalcellNucleusBasementmembraneTissuenotstretchedFreesurfaceTransitionalepithelial cellNucleusTissueBasementmembranestretched(h)Transitionalepithelium
Transitional Epithelium a stratified epithelium with cells that change shape. lines organs, such as the urinary bladder, that change shape. As the tissue is stretched, the cells change from cuboidal to squamous and the number of layers of cells decreases
Classificationof Covering Epitheliumendotheliumsimple squamous epi.mesotheliumSimplesimple cuboidal epiepi.simple columnar epi.pseudostratified ciliated columnarepi.Non-keratinizationstratified squamousepi.keratinizationStratifiedstratifiedcolumnarepi.epi.transitional epi
Simple epi. simple squamous epi. simple cuboidal epi. simple columnar epi. pseudostratified ciliated columnar epi. endothelium mesothelium Stratified epi. stratified squamous epi. stratified columnar epi. transitional epi. Non-keratinization keratinization Classification of Covering Epithelium