mesothelium
/ˌmɛzəˈθiːliəm/
noun
- The thin layer of cells that lines the chest, abdomen, and other internal cavities, protecting the organs and producing lubricating fluid.
- The mesothelium acts as a protective barrier for the heart and lungs.
- Damage to the mesothelium can lead to scarring and breathing difficulties.
- The mesothelium secretes a fluid that allows the lungs to move smoothly during breathing.