What are the crescent-shaped fibrocartilage discs located on the tibial plateau called?

What are the crescent-shaped fibrocartilage discs located on the tibial plateau called?

• A. Medial and lateral menisci
• B. Tibial tuberosity
• C. Interosseous ligaments
• D. Plicae

Answer: (A)

The crescent-shaped fibrocartilage discs located on the tibial plateau are known as the medial and lateral menisci. These structures serve several important functions within the knee joint, such as providing stability by deepening the joint socket and helping to distribute body weight across the joint to reduce stress on the underlying bone. Additionally, they act as shock absorbers during activities like walking or running, which helps protect the knee tissues from injury. The menisci also facilitate smooth movement between the femur and tibia, contributing to the overall function of the knee.

In contrast, the tibial tuberosity refers to the bony prominence where the patellar ligament attaches, while interosseous ligaments are fibrous tissues that connect two bones along their length but do not have the same function as the menisci. Plicae are folds of synovial membrane in the joint that can sometimes cause pain or restriction, but they are not the crescent-shaped discs found on the tibial plateau.