The peritoneum is the serous membrane that lines the abdominal cavity.
It is composed of mesothelial cells that are supported by a thin layer of fibrous tissue and is embryologically derived from the mesoderm.
The serous membrane, or serosal membrane, is a thin membrane that lines the internal body cavities and organs such as the heart, lungs, and abdominal cavity.
The thin membrane is made up of mesothelium tissue which originates from the mesoderm.
Serous membranes line body cavities that do not open directly to the outside, and they cover the organs located in those cavities.
Serous membranes are covered by a thin layer of serous fluid that is secreted by the epithelium.
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