squamous epithelium

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Related to Stratified squamous: Pseudostratified columnar

epithelium

 [ep″ĭ-the´le-um] (pl. epithe´lia) (Gr.)
the cellular covering of internal and external surfaces of the body, including the lining of vessels and other small cavities. It consists of cells joined by small amounts of cementing substances. Epithelium is classified into types on the basis of the number of layers deep and the shape of the superficial cells.
ciliated epithelium epithelium bearing vibratile, hairlike processes (cilia) on its free surface.
columnar epithelium epithelium whose cells are of much greater height than width.
cuboidal epithelium epithelium whose cells are of approximately the same height and width, and appear square in transverse section.
germinal epithelium thickened peritoneal epithelium covering the gonad from earliest development; formerly thought to give rise to germ cells.
glandular epithelium that composed of secreting cells.
pigmentary epithelium (pigmented epithelium) that made of cells containing granules of pigment.
sense epithelium (sensory epithelium) neuroepithelium (def. 1).
simple epithelium that composed of a single layer of cells.
squamous epithelium that composed of flattened platelike cells.
stratified epithelium epithelium made up of cells arranged in layers.
transitional epithelium a type characteristically found lining hollow organs, such as the urinary bladder, that are subject to great mechanical change due to contraction and distention; originally thought to represent a transition between stratified squamous and columnar epithelium.

squamous epithelium

n.
Epithelium consisting of one or more cell layers, the most superficial of which is composed of flat, scalelike or platelike cells.

squamous epithelium

Etymology: L, squama, scale; Gk, epi, above, thele, nipple
a sheet of flattened scalelike cells, attached together at the edges. Also called pavement epithelium.
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Simple squamous epithelium

squa·mous ep·i·the·li·um

(skwā'mŭs ep'i-thē'lē-ŭm)
Epithelium consisting of a single flat layer of cells.

squamous epithelium

An outer layer of a surface (epithelium) that is composed of flat, scaly cells.

squa·mous ep·i·the·li·um

(skwā'mŭs ep'i-thē'lē-ŭm)
Epithelium consisting of a single layer of cells.
References in periodicals archive ?
At pathologic examination, a huge pancreatic cyst was measured 15 cm in size [Figure 2], and a cyst lining composed of benign stratified squamous epithelium atop a lymphoid tissue layer [Figure 3].
The histopathological features of a cyst, a continue thin stratified squamous epithelial lining surrounding a cavity and a connective capsule of variable density reported in present study are similar with Godoy et al criteria.
In the esophagus, a stratified squamous epithelium provides protection from physical abrasion by ingested food.
Microscopic examination of skin lesions showed swelling, vacuolation, and characteristic eosinophilic cytoplasmic inclusion bodies in the stratified squamous epithelial cells of the folliculus pili (online Technical Appendix Figure 1, http://wwwnc.
Eruptive Vellus Dermal cysts lined by stratified squamous Hair Cysts epithelium, with granular layer, contained vellus hairs; no sebaceous glands [6] Epidermoid cysts Cysts lined by stratified epithelium, with granular layer, lamellar keratin inside [7] Milia Small cysts in the superficial dermis coated by epithelium with granular cell layer' contains lamellar keratin [7] Trichilemmal cysts Cysts lined by squamous epithelium without granular layer, filled with homogenous keratin [7] Steatocystomas Cysts lined by stratified squamous epithelium without granular layer and vellus hairs inside the cavity; sebaceous lobules close to the cystic wall [7]
The morphologic features of the resected SCPDs have been well characterized in the prior reports, (1,2) Briefly, SCPD is a unilocular cyst with a simple stratified squamous epithelial lining lacking a granular layer and superficial keratinization.
3) Histopathologically, KOTs are characterized by a connective tissue capsule lined with parakeratinized stratified squamous epithelium of 5-8 cell layers.
2) The pathologic diagnostic criteria for epidermoid cyst in an intrapancreatic accessory spleen include the presence of a cyst lined by stratified squamous epithelium (either keratininzing or non-keratinizing, with some cases having partial mucinous lining) surrounded by splenic red pulp, which may be unilocular or multilocular, in the tail of pancreas.
1) Evidence points to this as a metaplastic condition in reaction to ulceration and re-epithelialisation, the columnar epithelium replacing the normal stratified squamous epithelium.
Histologically, the specimen displayed both endophytic and exophytic morphology, comprising of warty papillomatous projections lined by variably atypical stratified squamous epithelium and overlying hyperkeratosis and parakeratin.
A moderately dense chronic inflammatory reaction was also associated with the tissue which was covered with parakeratinized stratified squamous epithelium of variable thickness (Figure 2).
Stratified squamous epithelium with sebaceous and sweat glands, hair shafts, calcification, few bony spicules and bone marrow elements were all demonstrated.