squamous epithelium


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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 ?
Treponema pallidum IHC stain highlighted organisms predominantly in the lamina propria, under the squamous epithelium, and concentrated around vessels.
The oral tumours show proliferation of stratified squamous epithelium in broad processes with keratin cores and keratin filled crypts which seem to burrow into bone, but lack obvious cytological features of malignancy7.
As for group II, the diagnosis of severe grade of dysplasia of squamous epithelium (CIN 3) was made in 17 (50%) patients , a moderate dysplasia of squamous epithelium (CIN 2) and mild dysplasia of squamous epithelium (CIN l) was found in 10 (29.
The cutoff for R between normal squamous epithelium and low grade lesions was 11.
The apical portion of the clitoral urethra was internally lined by squamous epithelium and no urethral glands were found in the mucosa.
The epithelial lining was stratified squamous epithelium of 6-8 cell layered thickness, showing detachment from the underlying collagenous capsule with palisading arrangement of nucleus in the basal layer.
The histologically prepared specimens of the lesions were lined by parakeratinized stratified squamous epithelium containing layers of only approximately 5-6 cells before the marsupialization procedures.
1) Oral epithelium is classified into three types based on their morphology and specific pattern of differentiation: keratinized stratified squamous epithelium (masticatory mucosa distributed in hard palate and gingiva), non-keratinized stratified squamous epithelium (buccal mucosa, labial mucosa) and specialized mucosa (dorsal surface of the tongue).
Histopathological findings consisted of cyst wall lining of stratified squamous epithelium with sebaceous glands, blood vessels, muscle and cartilage in the underlying connective tissue, and a diagnosis of teratoma was made (fig 2).
Simple squamous epithelium was present on the central third of the endoluminal surface of animal 4's prosthesis (Figure 5).
Extensive sampling of the tumors and surrounding breast tissue after mastectomy would have given the definite answer regarding the presence or absence of metaplastic squamous epithelium in the ducts or any other associated pathology.
The surface part of the squamous papilloma with prominent nuclear dysplasia and the loss of stratification and polarisation in hypercellular squamous epithelium were seen and also the papilloma showed prominent dysplastic figures and dyskeratotic cells.

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