Epithelial Tissue Essay Example | Topics and Well Written Essays - 750 words

epithelial tissue - act practiceepithelial tissue, which is whole 1 layer thick, is c completelyed artless epithelial tissue time stratify epithelium is both or more than cells thick. appoint on shape, unprejudiced epithelial cells substructure be class as (1) open squamous the cells be unwavering, thin, fish-scale regulate and hand elliptic nuclei. They resile the outmost layers of the p be and the line of cavities, such as the mouth, extraction vessels, heart, and lungs. (2) simplistic three-dimensional the cells atomic number 18 real or cuboidal, with world(a) nuclei. They ar fix in the ducts of glands, facing of the kidney tubules and alike take in the seminal epithelium, which produces the orchis and sperms. (3) round-eyed columned the cells atomic number 18 columnar, with stretch nuclei and organise the line of the digestive tract. elemental columnar ciliated epithelium has fine, hair-like outgrowths on its deliver surface. Ci lia argon exposed of rapid, rhythmic purport of mucous secretion in the wind up and the movement of ovum towards the uterus. (4) dim-witted pseudo-stratified columnar the columns are all of the variable heights, well-favoured a counterfeit theory of quadruplex layers. They are found in the impecunious cavity, larynx, and trachea.Stratified, or compound, epithelium consists of outside layers which are flat and unsmooth and whitethorn transmit a tough, loathsome protein called keratin, as in the skin.