Ligament
Coronary and triangular ligaments
Liver–diaphragm peritoneal attachments
High-yield
These are peritoneal folds rather than dense joint ligaments. The right bare area occupies the interval between coronary reflections, while the triangular attachments mark lateral convergence.
Overview
Where peritoneum reflects between the liver and diaphragm, it forms the coronary and triangular attachments. On the right, separated coronary layers outline the bare area and converge into the right triangular ligament. The left triangular ligament secures the lateral left lobe to the diaphragm through a corresponding peritoneal reflection.
Reference facts
- Attachments
- Coronary layers reflect between diaphragm and posterior/superior liver; the right triangular ligament joins their lateral margins, and the left triangular reflection attaches the lateral left lobe to the diaphragm.
- Function
- Help stabilize the liver relative to the diaphragm while permitting respiratory movement; fixation is also supported by the caval and other attachments.
- Clinical point
- These folds define planes relevant to liver mobilization and nearby hiatal exposure. Their continuity helps explain why posterior hepatic attachments relate to extraperitoneal tissue.
Frequently asked questions
Where do the coronary and triangular ligaments attach?
Coronary layers reflect between diaphragm and posterior/superior liver; the right triangular ligament joins their lateral margins, and the left triangular reflection attaches the lateral left lobe to the diaphragm.
What do the coronary and triangular ligaments do?
Help stabilize the liver relative to the diaphragm while permitting respiratory movement; fixation is also supported by the caval and other attachments.
Why do the coronary and triangular ligaments matter clinically?
These folds define planes relevant to liver mobilization and nearby hiatal exposure. Their continuity helps explain why posterior hepatic attachments relate to extraperitoneal tissue.