Meso cells, also known as mesothelial cells, are specialized cells that form a single layer, called the mesothelium, lining the body's serous cavities and internal organs. These cavities, such as the pleural cavity (surrounding the lungs), peritoneal cavity (abdominal cavity), and pericardial cavity (around the heart), are filled with a lubricating fluid that allows organs to move smoothly against each other.
Mesothelial cells are primarily squamous-like, meaning they are flat and pavement-like, and they have a central nucleus. They are approximately 25 μm in diameter and possess characteristic surface microvilli, which are tiny finger-like projections that increase the cell's surface area.
The primary function of the mesothelium is to provide a smooth, non-adhesive, and protective surface within these cavities. This is crucial for preventing friction and inflammation between organs. Mesothelial cells also play a role in fluid balance and waste removal within the cavities.
Here are some key points about meso cells:
- They form a single layer called the mesothelium.
- They line serous cavities and internal organs.
- Their primary function is to provide a smooth, non-adhesive, and protective surface.
- They contribute to fluid balance and waste removal.
Mesothelial cells can also be involved in disease processes. Mesothelioma, a type of cancer, arises from these cells, often caused by exposure to asbestos.
