Trefjabrjósk

Trefjabrjósk is an Icelandic term that translates to "fibrocartilage" in English. It refers to a type of connective tissue found in the body, characterized by its abundance of collagen fibers. This tissue plays a crucial role in providing structural support and resisting mechanical stress in various anatomical locations.

Fibrocartilage is a dense connective tissue that combines the strength of collagenous fibers with the resilience of cartilage. It is less flexible than elastic cartilage but more pliable than hyaline cartilage. The matrix of fibrocartilage is rich in type I and type II collagen, arranged in thick, parallel bundles that confer significant tensile strength. The cells within fibrocartilage are chondrocytes, which reside in lacunae and are surrounded by the fibrous matrix.

Key locations where trefjabrjósk is found include the intervertebral discs, which cushion the vertebrae in the spine, and the menisci of the knee, which act as shock absorbers and stabilizers. It is also present in the pubic symphysis, a joint connecting the left and right pubic bones, and in the articular discs of certain joints, such as the temporomandibular joint (jaw joint). The biomechanical properties of trefjabrjósk make it ideal for areas subjected to significant pressure and shear forces. Its ability to withstand tension and compression is vital for the proper functioning of these load-bearing structures.