The liver is almost completely covered by which structure?

The liver is covered almost entirely by Glisson's Capsule, which is a fibrous connective tissue layer that envelops the liver and provides structural support. This capsule is critical because it not only helps protect the liver but also plays a role in its blood supply and the maintenance of its function. Glisson's Capsule extends along the hepatic blood vessels and bile ducts, providing a framework for the liver's architecture.

While the peritoneum also covers the liver to some degree, it is not a complete covering. The liver's surface is primarily in contact with the peritoneum, but Glisson's Capsule serves as the defining structure that encapsulates the liver more completely. Understanding the anatomy of the liver and its relationships with surrounding tissues, including the peritoneal cavity and adjacent organs, is essential for interpreting ultrasound images and for various clinical assessments.