Why don't articular cartilage have perichondrium?

Articular cartilage lacks a perichondrium because it is designed for specialized functions in joint surfaces, where smooth movement and load distribution are critical. The absence of a perichondrium allows for a reduced barrier to nutrient diffusion from the synovial fluid, which is essential for maintaining the health of the cartilage. Additionally, the lack of a perichondrium helps to minimize friction and wear during joint movement, enhancing the overall functionality of the joint.