White fibrocartilage function consists of a mixture of white fibrous tissue and cartilage in various proportions. It owes its stiffness and durability to the first of these components and its flexibility to the latter. It is the only type of cartilage which, in addition to collagen type II, contains type I collagen. Fibrocartilage is found in the soft adjacent bone tissues, the pubic symphysis, the intervertebral disc, the meniscus, the triangular fibroblast, and the TMJ. During labor, it relaxes the pubic symphysis to help in childbirth, but this can lead to later problems in the joints.
If the vitreous cartilage is torn to the bone, the blood supply from the inside of the bone is sometimes enough to initiate treatment within the lesion. In such cases, the body creates a scar in the area, using a special type of cartilage called fibro-cartilaginous. Fibrocartilage is a hard, dense and fibrous material that helps fill the torn part of the cartilage; however, this is not a perfect replacement for smooth, glassy joint cartilage, which normally covers the surface of the joints.
Fibrous callus is a temporary formation of fibroblasts and chondroblasts that forms at the point where the bone broke when the bone attempts to heal. The cells eventually dissipate and become dormant, lying in the resulting extracellular matrix, which is the new bone. Callus is the first symptom of the relationship saw on the X-ray, usually 3 weeks after the fracture. Callus formation is slower in adults than in children, as well as in cortical bone than spongy bones.
The fibroblast is a type of biological cell that synthesizes the extracellular matrix and collagen, forms a structural skeleton (framework) in animal tissues and plays a key role in wound healing. Fibroblasts are the most common connective tissue cells in animals.