What are examples of fibrocartilage?

• A. Articular surfaces of bones
• B. Interpubic disc and meniscus
• C. Ligaments and tendons
• D. Cartilage of the ear

Answer: (B)

Fibrocartilage is a specific type of cartilage that is characterized by a dense arrangement of collagen fibers, providing both tensile strength and the ability to absorb compressive forces. This unique structure makes fibrocartilage particularly effective in areas of the body that require resistance to pressure and tension.

The interpubic disc, found between the pubic bones, and the meniscus, located in the knee joint, are prime examples of fibrocartilage. They serve critical functions in absorbing shock and providing stability to these joints. The interpubic disc facilitates movement between the two pubic bones while cushioning them during weight-bearing activities. Similarly, the meniscus helps distribute weight across the knee, reduces friction, and stabilizes the joint during motion.

In contrast, while articular surfaces of bones (which are typically covered by hyaline cartilage), ligaments, tendons, and the cartilage of the ear have their own specific structures and functions, they do not exemplify fibrocartilage. Articular surfaces are primarily made of hyaline cartilage, ligaments are composed of dense connective tissue, tendons connect muscles to bones, and the cartilage of the ear (elastic cartilage) is characterized by a different composition that allows for flexibility and shape retention.