epithelium

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Related to seminiferous epithelium: Seminiferous tubules

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 ?
In particular, the slowdown of spermatogenesis, the presence of oocyte-like cells in the seminiferous epithelium, and the reduced secretive activity of the epididymal corpus represent the classical alterations due to estrogenic exposure, already described in this lizard [9, 10, 20].
ELVs usually lead to degeneration of the seminiferous epithelium at least four weeks after their establishment via surgery [7, 8].
IHH induced significant histopathological changes, including disordered arrangement and exfoliation of seminiferous epithelium cells, and reduced Johnsen's scores.
At low doses of irradiation, sertoli and Leydig cells do not show any histological changes because they are fairly radioresistant.19 At dosages above 10Gy, no morphological changes are seen in these cells, but they start to shrink.19 The differentiating spermatogonial cells are radiosensitive while spermatocytes, spermatids and spermatozoa are relatively radioresistant.20 Non-differentiating spermatogonial cells, also referred to as stem cells, are the most radioresistant of all spermatogenic cells.21,23 It is the division and differentiation of these surviving cells that is responsible for the repopulation of the seminiferous epithelium following exposure to radiation.23
Thirty tubules were selected per animal in both groups to determine the most developed germ cell type present in seminiferous epithelium. Germ cells were analyzed using bright field microscopy for morphological characterization of cell types, following Sachetim (1999).
(2014) based on the acrosome development in spermatids and the overall germ cell associations have revealed that ten stages of the seminiferous epithelium cycle were characterized in K.
The treatment with MT is increasing dead sperm, and histological examination revealed atrophy of the seminiferous epithelium and moderate impairment of spermatogenesis and dissociation of germ cells, as well as the basement membrane which was severe in the high dose.
In seminiferous epithelium during the fetal period, spermatogenic cells are hardly seen at different levels except for SSCs and supporting cells (7).
Self-renewal and differentiation of the testis stem cells is dependent on their close association with Sertoli cells in the seminiferous epithelium (12).
"An intracellular trafficking pathway in the seminiferous epithelium regulating spermatogenesis: A biochemical and molecular perspective," Critical Reviews in Biochemistry and Molecular Biology 44(5): 245-263.