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Fibrocartilage consists of a mixture of white fibrous tissue and cartilaginous tissue in various proportions. It owes its inflexibility and toughness to the former of these constituents, and its elasticity to the latter. It is the only type of cartilage that contains type I collagen in addition to the normal type II.
Locations of fibrocartilage in the human body
- secondary cartilaginous joints:
- glenoid labrum of shoulder joint
- acetabular labrum of hip joint
- medial and lateral menisci of the knee joint
- location where tendons and ligaments attach to bone
If hyaline cartilage is torn all the way down to the bone, the blood supply from inside the bone is sometimes enough to start some healing inside the lesion. In cases like this, the body will form a scar in the area using a special type of cartilage called fibrocartilage. Fibrocartilage is a tough, dense, and fibrous material that helps fill in the torn part of the cartilage; however, it is not an ideal replacement for the smooth, glassy articular cartilage that normally covers the surface of joints.
Degeneration of fibrocartilage is seen in degenerative disc disease.
- Maynard, Robert Lewis; Downes, Noel (2019-01-01), Maynard, Robert Lewis; Downes, Noel (eds.), "Chapter 3 - Introduction to the Skeleton: Bone, Cartilage and Joints", Anatomy and Histology of the Laboratory Rat in Toxicology and Biomedical Research, Academic Press, pp. 11–22, ISBN 978-0-12-811837-5, retrieved 2021-01-04
- Histology image: 03201loa – Histology Learning System at Boston University