mesothelium
Definition
Noun: - A layer of epithelial cells that originates from the embryonic mesoderm. This tissue lines several major internal body cavities, such as the pleural cavity (around the lungs), the pericardial cavity (around the heart), and the peritoneal cavity (in the abdomen).
Usage
The term "mesothelium" is used specifically in anatomical, medical, and biological contexts to describe this particular type of lining tissue. - The mesothelium secretes a lubricating fluid that allows organs to move smoothly against each other. - Mesothelioma is a type of cancer that affects the mesothelium.
Advanced Usage
- Pleural mesothelium: Refers specifically to the mesothelial lining of the lungs (pleura).
- Peritoneal mesothelium: Refers specifically to the mesothelial lining of the abdominal cavity (peritoneum).
Variants and Related Words
- Mesothelial (adjective): Of or relating to the mesothelium.
- Mesothelial cells form a protective layer.
- Mesothelioma (noun): A malignant tumor derived from mesothelial tissue.
Synonyms
- Serous membrane: A broader term for a membrane lining body cavities; the mesothelium is the epithelial layer of a serous membrane.
- Epithelium (of mesodermal origin): A more technical descriptive synonym.
Noun
-
epithelium originating in the embryonic mesoderm; lines the primordial body cavity
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