What is cartilage primarily known for?

Cartilage is primarily known for being flexible connective tissue. It serves as a crucial structural component in various parts of the body, such as the joints, ears, nose, and trachea. What distinguishes cartilage from other types of connective tissue is its unique composition, which includes a dense network of collagen and elastin fibers embedded in a gel-like matrix. This structure gives cartilage its characteristic flexibility and resilience, allowing it to withstand compression and provide smooth surfaces for joint movement.

Additionally, cartilage plays an essential role in the development and growth of bones in children and adolescents, as it acts as a precursor during skeletal formation. Its flexibility also enables it to serve protective functions, cushioning bones and reducing friction in joints, which is vital for maintaining mobility and overall joint health. The other choices relate to different types of tissues or functions not associated with the primary characteristics of cartilage.