What is a fused peritoneum with transversalis fascia?

A fused peritoneum with the transversalis fascia is called the transversalis fascia-peritoneum interface.**

This interface is created by the fusion of the transversalis fascia and the peritoneum, two layers of tissue that line the abdominal cavity. This fusion occurs during embryonic development and results in the formation of a continuous sheet of tissue that separates the abdominal cavity from the rest of the body. The transversalis fascia-peritoneum interface is an important structure that provides support for the abdominal organs and helps to maintain intra-abdominal pressure. It also acts as a barrier to the spread of infection from the abdominal cavity to the rest of the body.