Kõhrkihi

Kõhrkihi is an Estonian term that translates to "cartilage layer" or "cartilaginous layer." It refers to a layer of cartilage, a flexible connective tissue found in various parts of the body. In the context of biology and anatomy, kõhrkihi is most commonly used to describe the cartilage that covers the articular surfaces of bones within joints. This articular cartilage plays a crucial role in allowing smooth, low-friction movement between bones and acts as a shock absorber, protecting the underlying bone from stress and impact.

The structure of kõhrkihi is characterized by chondrocytes, which are cells embedded within a matrix of collagen fibers and proteoglycans. This matrix provides the cartilage with its unique properties of strength, elasticity, and resilience. The smooth surface of the kõhrkihi is essential for the proper functioning of synovial joints. Damage or degeneration of this layer, often referred to as osteoarthritis, can lead to pain, stiffness, and limited mobility. Understanding the composition and function of kõhrkihi is fundamental to comprehending joint health and the mechanisms of various musculoskeletal conditions.