kõhrekudede

Kõhrekudede, also known as cartilage tissue, are a type of connective tissue found throughout the body. They are characterized by their firm but flexible nature, which allows them to provide support and cushioning in various locations. The primary cells within cartilage are chondrocytes, which reside in small cavities called lacunae and are embedded within an extracellular matrix. This matrix is rich in collagen and proteoglycans, giving cartilage its characteristic resilience.

There are three main types of cartilage tissue, each with distinct properties and functions. Hyaline cartilage is the most common type, found in the articular surfaces of joints, the rib cage, and the nose. It provides smooth, low-friction surfaces for movement and structural support. Elastic cartilage, found in the ear and epiglottis, contains a high proportion of elastic fibers, allowing for greater flexibility and recoil. Fibrocartilage, the strongest type, is located in structures like intervertebral discs and the menisci of the knee, where it provides shock absorption and tensile strength.

Cartilage lacks blood vessels, meaning it receives nutrients through diffusion from surrounding tissues. This avascular nature contributes to its slow healing rate. Damage to cartilage can therefore be slow to repair and may lead to conditions like osteoarthritis. Despite this limitation, cartilage plays a crucial role in skeletal development, joint function, and structural integrity of various organs.