Localization endothelium h heart, blood vessles lymphatics Simple squanous mesothelium: Pericardium, pleura peritoneum epithelia others: alveoli of the lungs, glomeruli in the kidney, etcSimple squamous epithelia endothelium : heart, blood vessles lymphatics mesothelium : Pericardium, pleura peritoneum others：alveoli of the lungs, glomeruli in the kidney, etc Localization