Glisson is a term that refers to the Glisson capsule, which is a protective sheath of connective tissue surrounding the liver and the structures associated with it, such as the hepatic ducts and blood vessels. It is also known as the Glissonian capsule or the liver capsule.
The Glisson capsule is composed of dense fibrous tissue that acts as a barrier, providing structural support and protecting the liver from external trauma. It also helps in maintaining the shape and positioning of the liver within the abdominal cavity.
This fibrous capsule consists of two layers - an outer layer of collagenous tissue and an inner layer of elastin fibers. The collagen fibers impart strength to the capsule, while the elastin fibers provide flexibility, allowing the liver to expand and contract during various physiological processes.
The Glisson capsule is closely associated with the liver parenchyma and serves as a link between the liver tissue and the surrounding structures. It encloses small blood vessels, lymphatics, and nerves that supply and innervate the liver.
In addition to its protective role, the Glisson capsule also has a functional aspect. It is involved in hepatic blood flow regulation by exerting tension on the blood vessels within it, contributing to the maintenance of efficient blood circulation within the liver.
Overall, the Glisson capsule is an essential anatomical structure that plays a crucial role in protecting, supporting, and maintaining the proper functioning of the liver.
