epithelium

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Related to olfactory epithelium: olfactory nerve, olfactory bulb, Olfactory system

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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
epitelvýstelka

epithelium

[ˌɛpɪˈθiːlɪəm] nepitelio
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

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.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
The presence of AdipoR1 in the olfactory epithelium of mice was attributed to a potential modulatory role of APN in the olfactory system [22].
The olfactory system consists of three parts: olfactory epithelium, OB, and olfactory center.
All types of nasal surgery confer a risk of damage to olfactory function, even when surgery is performed in areas remote from the olfactory epithelium. (17) Although the precise reason for this risk remains unclear, it has been suggested that psychological factors (18,19) and changes in the intranasal volume (20,21) may be involved.
It has been reported to cause abnormalities or lesions in several organs like skin, eyes, nose throat, respiratory tract and nervous system (effects nerve fibers) leading to burning mouth, irritation of eyes, skin, contact dermatitis (erythema and necrosis), asthma with nasal olfactory epithelium prone to be the first site to get affected.3,5
The canine nasal cavity contains hundreds of millions of sensory neurons, located in olfactory epithelium that lines convoluted nasal turbinate's recessed in rear of nose (Craven et al., 2010).
The neuroproliferative effect of NPY was primarily identified in olfactory epithelium. Hansel and colleagues uncovered that [NPY.sup.-/-] mice had decreased proliferation of olfactory neuronal precursor cells in the olfactory epithelium.
AgNP can also enter the nasal cavity and translocate to the brain via the olfactory epithelium, a direct connection between the nose and brain (Kovacs 2004).
Olfactory neuroblastoma (ONB), also known as Esthesioneuroblastoma, is a rare but distinct malignant neuroectodermal tumor arising from the olfactory epithelium of roof of nasal cavity and cribriform plate.
Aromas (odors) are the volatile chemical compounds perceived via the sense of smell (olfaction) through stimulation of receptor cells in the olfactory epithelium located in the upper reaches of the nasal cavity.
In general, all noxae able to induce inflammation of the olfactory epithelium (OE) appear particularly detrimental to the olfactory function: reactive intermediates (e.g., reactive oxygen intermediates--ROIs) exhibit a significant toxic effect to the olfactory receptors either directly or indirectly [5-7,9-11].
Hypogonadism is due to deficiency of gonadotrophin releasing hormone (GnRH) which occurs due to failure of the embryonic migration of neuroendocrine GnRH cells from olfactory epithelium to forebrain.
Sensors from the olfactory epithelium provide input to the olfactory centers of the brain, and the large size of both the shark olfactory epithelium (nares) and the corresponding olfactory processing center of the brain argue for the central importance of odor cues (Meredith and Kajiura, 2010), although it cannot be ruled out that the behavioral responses in this case resulted from taste rather than smell.