What is the primary function of articular (hyaline) cartilage?

• A. Covers articular surfaces of bones
• B. Serves as a connector for muscles
• C. Produces synovial fluid
• D. Facilitates bone growth

Answer: (A)

The primary function of articular (hyaline) cartilage is to cover the articular surfaces of bones at joints. This specialized form of cartilage plays a critical role in providing a smooth, lubricated surface for joint movement, which reduces friction between the bones during movement. By doing so, it helps in the absorption of shock and in distributing loads across the joint, which is vital for maintaining joint health and functionality.

While hyaline cartilage participates in bone growth and development in some contexts, especially in the growth plates of long bones during childhood, its main role in the context of joints pertains to covering the surfaces that articulate with one another. This function is essential to ensuring that joints move efficiently and with minimal wear and tear.