What is the primary role of fibrocartilage in joints like the knee?

Fibrocartilage plays a crucial and multifaceted role in joint function, particularly in weight-bearing joints like the knee. Its primary functions include shock absorption and deepening the articulation between bones.

In the knee, fibrocartilage can be found in structures such as the menisci, which help to distribute body weight across the joint surface, reducing the stress on individual areas. This shock absorption capability mitigates the impact forces that occur during activities like running or jumping, protecting the underlying bone and cartilage.

Moreover, fibrocartilage contributes to the deepening of the joint articulation. It fills in the gaps between the articulating surfaces of the bones, enhancing the fit and increasing joint stability. This improved fit helps to prevent excessive movement that could lead to injuries.

Together, these functions help maintain joint health and proper biomechanics during movement, making shock absorption and deepening articulation fundamental roles of fibrocartilage in joints like the knee.