ciliated 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.

cil·i·at·ed ep·i·the·li·um

any epithelium having motile cilia on the free surface.

ciliated epithelium

[sil′ē·ā′tid]
Etymology: L, cilia + Gk, epi, upon, thele, nipple
any epithelial tissue that projects cilia from its surface, such as portions of the epithelium in the respiratory tract.

cil·i·at·ed ep·i·the·li·um

(sil'ē-ā-tĕd ep'i-thē'lē-ŭm)
Any epithelium having motile cilia on the free surface (e.g., bronchial epithelium).

ciliated epithelium

a sheet of cells (see EPITHELIUM) that carry cilia (see CILIUM) on the exposed surface. These cilia exhibit METACHRONAL RHYTHM and commonly move fluids about the bodies of animals, for example, in the respiratory passages of terrestrial vertebrates expelling dust or other foreign matter in microphagous animals. Ciliated epithelium is usually columnar and contains GOBLET CELLS for mucus production.
References in periodicals archive ?
Our findings may be useful for future studies of individual smooth muscles or of co-operative functions between smooth muscles and ciliated epithelium.
9-11) Ciliated epithelium is commonly seen in the respiratory tract, and it is found in the fetal esophagus from the 10th to the 20th week of gestation.
Most of the epithelia in the two areas were pseudostratified cylindrical ciliated epithelium with goblet cells (respiratory epithelium), stratified cuboidal epithelium, and stratified squamous nonkeratinized epithelium.
Cellular events that correlate with the symbiont-induced regression include hemocyte infiltration into the sinuses of the appendages and apoptosis of the cells composing the superficial ciliated epithelium (3) (Fig.
They are usually of mullerian (paramesonephric) origin and are lined by a single layer of tubal-type ciliated epithelium.
Along this band were densely packed cells with 5-HT-like immunoreactivity; the apical ends of these cells extended to the edge of the ciliated epithelium.
Metaplasia with ciliated epithelium at places was found in 44[58%] cases.
2] improves binding to a particular SCP receptor in the branchial epithelium of Mercenaria, as for example, the action of substance P on the ciliated epithelium of the rabbit maxillary sinus seems to be specifically at the NK1 receptor (Lindberg and Dolata, 1993).
This organ includes a complex, superficial, ciliated epithelium that will potentiate inoculation as well as a set of epithelium-lined crypts, or inpocketings of the surface of the light organ, that will house the symbiotic bacteria (Montgomery and McFall-Ngai, 1993).
These observations confirm the two-layer model for mucociliary transport and position on the ciliated epithelium of the mussel gill.
Electron microscopy confirmed this observation and further indicated that bacteria are absent from cells of the ciliated epithelium lining the gut and occur only sparsely in the digestive spaces [ILLUSTRATION FOR FIGURE 4D-E OMITTED].