Fibrous Cartilage (Fibrocartilage) (cartilage tissue)

Fibrous Cartilage (Fibrocartilage)

• Definition: Fibrous cartilage, commonly referred to as fibrocartilage, is a type of cartilage characterized by its robust structure and durability.

Locations of Fibrous Cartilage

• Key Examples:

  • Menisci of the Knee:

    • The menisci are crescent-shaped cartilaginous structures located in the knee joint. They act as cushions between the femur (thigh bone) and tibia (shin bone).

  • Intervertebral Discs:

    • These are fibrocartilaginous structures located between the vertebrae in the spinal column, providing support and flexibility to the spine.

  • Symphysis Pubis:

    • This is the joint located between the left and right pubic bones in the pelvis, which contains fibrocartilage to allow limited movement while absorbing shock.

Common Characteristics of Menisci of the Knee and Intervertebral Discs

• Strength and Durability:

  • Both the menisci of the knee and intervertebral discs share the common characteristic of strength and durability, crucial for their roles in supporting and protecting adjacent bones during movement and weight-bearing activities.

Cellular Composition

• Chondrocytes:

  • Fibrocartilage contains specialized cells known as chondrocytes, which reside in small cavities called lacunae. These cells are essential for the maintenance and health of the cartilage tissue.

Extracellular Matrix Composition

• Matrix Composition:

  • The matrix of fibrocartilage is comprised of dense collagen fibers. These fibers provide the tissue with its key attributes:

  • Durability: This allows fibrocartilage to withstand pressure and tension effectively.

  • Support: It helps maintain the structural integrity of the tissues it connects and cushions.