What is the primary function of cartilage in joints?

What is the primary function of cartilage in joints?

• A. To connect muscles
• B. To cushion bones and reduce friction
• C. To store minerals
• D. To produce blood cells

Answer: (B)

The main idea is that cartilage in joints provides a smooth, low-friction surface that cushions the ends of bones and helps absorb and distribute loads during movement. This cushioning action reduces wear and tear and allows bones to glide over each other with minimal resistance, which is essential for painless, efficient joint motion. That’s why cushioning bones and reducing friction is the best description of cartilage’s primary function in joints. The other options describe roles of different tissues: connecting muscles is the job of tendons, storing minerals happens in bone tissue, and producing blood cells occurs in bone marrow, not cartilage.

The main idea is that cartilage in joints provides a smooth, low-friction surface that cushions the ends of bones and helps absorb and distribute loads during movement. This cushioning action reduces wear and tear and allows bones to glide over each other with minimal resistance, which is essential for painless, efficient joint motion. That’s why cushioning bones and reducing friction is the best description of cartilage’s primary function in joints.

The other options describe roles of different tissues: connecting muscles is the job of tendons, storing minerals happens in bone tissue, and producing blood cells occurs in bone marrow, not cartilage.