mesothelium

mes·o·the·li·um

M0239300 (mĕz′ə-thē′lē-əm, mĕs′-)n. pl. mes·o·the·li·a (-lē-ə) The layer of flat cells of mesodermal origin that lines the embryonic body cavity and gives rise to the squamous cells of the peritoneum, pericardium, and pleura.

[meso- + (epi)thelium.]

mes′o·the′li·al adj.

mesothelium

(ˌmɛsəʊˈθiːlɪəm) n, pl -liums or -lia (-lɪə) (Anatomy) epithelium derived from embryonic mesoderm lining body cavities[from New Latin, from meso- + (epi)thelium] ˌmesoˈthelial adj

mes•o•the•li•um

(ˌmɛz əˈθi li əm, ˌmɛs-, ˌmi zə-, -sə-)

n., pl. -li•a (-li ə) epithelium of mesodermal origin, which lines the body cavities. [1885–90; meso- + (epi) thelium] mes`o•the′li•al, adj.

Thesaurus

Noun

mesothelium - epithelium originating in the embryonic mesoderm; lines the primordial body cavityepithelial tissue, epithelium - membranous tissue covering internal organs and other internal surfaces of the body

Translations

Mesothelium

mesothelium

[‚me·zō′thē·lē·əm] (anatomy) The simple squamous-cell epithelium lining the pleural, pericardial, peritoneal, and scrotal cavities. (embryology) The lining of the wall of the primitive body cavity situated between the somatopleure and splanchnopleure.

Mesothelium

in vertebrates and man, the epithelial tissue that lines the serous membranes of the body cavity (peritoneum, pleura, pericardium).

Mesothelium is formed from mesoderm. It consists of a single layer of densely arranged flat polygonal cells. In lower vertebrates (cyclostomes, fish, amphibians), mesothelial cells are wholly or partly furnished with cilia. In mammals and man, the surfaces of the cells are covered with microvilli, which assist in the absorption and excretion of cavitary fluid. Mesothelium is highly sensitive to external influences. When the serous membranes are irritated and an inflammatory reaction results, the continuity of the mesothelial layer is interrupted, the cells are destroyed, and the underlying connective tissue is exposed. The connective tissue cells then penetrate the irritated area and phagocytize the dying tissue areas and, in septic inflammation, the bacteria. The connective tissue then proliferates, demarcating the focus of irritation and forming adhesions. Mesothelium grows over the adhesions, preventing them from further development and preventing visceral concrescence.

mesothelium

[mez″o-the´le-um] the layer of flat cells, derived from the mesoderm, that lines the body cavity of the embryo. In the adult it forms the simple squamous epithelium that covers the surface of all true serous membranes (peritoneum, pericardium, pleura).

mes·o·the·li·um

, pl.

mes·o·the·li·a

(mez'ō-thē'lē-ŭm, -lē-ă), A single layer of flattened cells forming an epithelium that lines serous cavities; for example, peritoneum, pleura, pericardium. [meso- + epithelium]

mesothelium

(mĕz′ə-thē′lē-əm, mĕs′-)n. pl. mesothe·lia (-lē-ə) The layer of flat cells of mesodermal origin that lines the embryonic body cavity and gives rise to the squamous cells of the peritoneum, pericardium, and pleura.

mes′o·the′li·al adj.

mes·o·the·li·um

, pl. mesothelia (mez'ō-thē'lē-ŭm, -ă) A single layer of flattened cells forming an epithelium that lines serous cavities; e.g., peritoneum, pleura, pericardium.

mesothelium

Lining cells originating in the primitive MESODERM of the developing embryo. Mesothelium occurs in the PERITONEUM, PLEURA and PERICARDIUM as well as elsewhere in the body.

Mesothelium

A membrane/sac that that protects the body's major internal organs and allows them freedom of movement (for example, lung contractions). The mesothelium is comprised of several regions, including the abdominal cavity (peritoneum), the chest cavity (pleura), and pericardium (heart).Mentioned in: Mesothelioma

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Words related to mesothelium

noun epithelium originating in the embryonic mesoderm

Related Words