Question

What term is used to describe structures that line internal cavities and consist of two layers, the innermost visceral and the outermost parietal, primarily functioning in lubrication?

Answer 1

Serous membranes line body cavities and consist of two layers, the parietal and visceral, functioning in lubrication

Step-by-step explanation:

Serous membranes line body cavities closed to the exterior of the body, such as the peritoneal, pleural, and pericardial cavities. These membranes consist of two layers, the parietal layer that lines the walls of the body cavity and the visceral layer that covers the organs. Between these layers is a thin, fluid-filled serous space, or cavity, which acts as a lubricant to minimize friction between the serosal surfaces of the peritoneum.