MESOTHELIUM---SIMPLE SQUAMOUS EPITHELIUM lining the Abdmoninal Cavity, 250X - stock photo

MESOTHELIUM---SIMPLE SQUAMOUS EPITHELIUM lining the Abdominal Cavity, 250X. Simple Squamous Epithelium is composed of extremely thin Squamous epithelial cells. These cells have a nucleus, cytoplasm, and cell membrane. Sometimes this is referred to as "pavement epithelium." The Peritoneum is a membrane that lines the abdominal cavity and covers the visceral organs. The Peritoneum is composed in part of mesothelium, This serous membrane secretes a watery serous fluid that acts as a lubricant. Mesothelium also is part of the pleural membranes that line the pleural cavities and cover the surface of the lungs. These are also serous membranes that secrete a lubricating serous fluid.