What is the covering of cartilage called?

What is the covering of cartilage called?

• A. Periosteum
• B. Perichondrium
• C. Synovial membrane
• D. Cortex

Answer: (B)

The covering of cartilage is known as the perichondrium. This structure is a dense layer of connective tissue that not only provides support and protection to the cartilage but also contains blood vessels and nerves. It plays a crucial role in the growth and repair of cartilage tissue, supplying nutrients through diffusion since cartilage itself is avascular, meaning it does not have its own blood supply.

The perichondrium consists of two layers: the outer fibrous layer, which helps attach the cartilage to surrounding structures, and the inner chondrogenic layer, which contains progenitor cells that can differentiate into chondrocytes, the cells responsible for cartilage formation. This is essential for the maintenance and overall health of cartilage.

Understanding the structure and function of the perichondrium is vital in fields such as orthopedics and physical therapy, where cartilage injuries or degenerative diseases are significant concerns. The knowledge of this protective layer helps in diagnosing and developing treatment strategies for cartilage-related conditions.