epithelium


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ep·i·the·li·um

 (ĕp′ə-thē′lē-əm)
n. pl. ep·i·the·li·a (-lē-ə) or ep·i·the·li·ums
Membranous tissue composed of one or more layers of cells separated by very little intercellular substance and forming the covering of most internal and external surfaces of the body and its organs.

[New Latin epithēlium : epi- + Greek thēlē, nipple; see dhē(i)- in Indo-European roots.]

ep′i·the′li·al adj.

epithelium

(ˌɛpɪˈθiːlɪəm)
n, pl -liums or -lia (-lɪə)
(Anatomy) an animal tissue consisting of one or more layers of closely packed cells covering the external and internal surfaces of the body. The cells vary in structure according to their function, which may be protective, secretory, or absorptive
[C18: New Latin, from epi- + Greek thēlē nipple]
ˌepiˈthelial adj

ep•i•the•li•um

(ˌɛp əˈθi li əm)

n., pl. -li•ums, -li•a (-li ə)
any tissue layer covering body surfaces or lining the internal surfaces of body cavities, tubes, and hollow organs.
[1740–50; < New Latin < Greek epi- epi- + thēl(ḗ) teat + New Latin -ium -ium2]

ep·i·the·li·um

(ĕp′ə-thē′lē-əm)
The thin, protective layer of cells that covers most of the outer surface of an animal body and lines the inner surface of many body parts. In vertebrate animals, the outer layer of the skin, called the epidermis, is composed of epithelium.

epithelium

1. A type of animal tissue that covers inner and outer surfaces.
2. The layer of cells covering the body’s surface and lining the alimentary canal and respiratory and urinary tracts.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.epithelium - membranous tissue covering internal organs and other internal surfaces of the bodyepithelium - membranous tissue covering internal organs and other internal surfaces of the body
endothelium - an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities
mesothelium - epithelium originating in the embryonic mesoderm; lines the primordial body cavity
neuroepithelium - epithelium associated with special sense organs and containing sensory nerve endings
epithelial cell - one of the closely packed cells forming the epithelium
animal tissue - the tissue in the bodies of animals
decidua - the epithelial tissue of the endometrium
Translations
epitelvýstelka

epithelium

[ˌɛpɪˈθiːlɪəm] nepitelio

ep·i·the·li·um

n. L. epitelio, tejido que cubre las superficies expuestas e interiores del cuerpo;
ciliated ______ ciliado;
columnar ______ columnar;
cuboidal ______ cuboidal;
squamous ______ escamoso;
stratified ______ estratificado;
transitional ______ de transición, transicional.
References in periodicals archive ?
After ten days of development the scales growth is revealed by an epithelial fold around the posterior edge that shows a multilayered well-differentiated epithelium at the external surface and a two layered undifferentiated epithelium at the internal surface.
From there, using processes like we have developed for lens epithelium, we will be able to produce diseased cells--an invaluable asset for medical research," Barberi said.
This creates the perfect conditions for the laser ablation, and augments epithelium periphery growth to shorten visual recovery time and reduce pain during epithelial healing.
The keratin proteins have a uniform mode of distribution among the various layers of epithelium which gives an indication of the disease process.
The model which I use for teaching, has the following features: a blue line on top to delineate the cervico-vesical plica, a pink colored core (stroma), and a soft tissue covering the stroma representing the cervical epithelium or mucosa.
Different odors evoked different patterns of activity across the olfactory epithelium," says Hadas Lapid, a neuro-biologist at the Weizmann Institute of Science in Israel.
The present study was therefore aimed at examining the capacity for binding of the testicular, epididymal, and vas deferens sperm to the epithelium of the SST under both in vivo and in vitro conditions as a means of assessing their functional maturation.
In ducks, epithelium type and the glands of esophagus are not associated with type of the feed (Fedr, 1972).
These cysts have an epithelial lining that derives from the tooth-forming organ epithelia: the so-called glands of Serres (rests of the dental lamina), the rests of Malassez (rests of the root sheath of Hertwig), and the reduced enamel epithelium (remnants of the enamel organ after dental crown formation).
The classical CXL protocol described by wollensek required debridement of the central 7 to 9 mm of corneal epithelium and a 30 minute pre-soak with riboflavin-5-phosphate and 20% dextran t-500 followed by continuous wave illumination of 3 mW/cm2 irradiance of 365 nm UVA for 30 minutes.