Fibrocartilage and elastic cartilage are two types of cartilage, the distribution area and cartilage function of the two cartilage structures are very different, fibrocartilage is mainly distributed in the human body near the micro-movement joints, such as the thoracic rib joints, sacroiliac joints, sacrococcygeal joints, cribriform joints, etc. There is also more fibrocartilage outside the sternoclavicular joints and intervertebral joints, and there is also some distribution of fibrocartilage around other movable joints, fibrocartilage The function and role of fibrocartilage is more similar to that of ligaments, fibrocartilage is more elastic and has a tougher structure to resist repetitive pressure and friction, for example, the outer part of the intervertebral disc is fibrocartilage, and when the overall deformation of the vertebral body occurs, the pressure on the inner part of the disc rises, fibrocartilage has a strong binding effect to resist the pressure. The elastic cartilage is mainly located in the inner ear and epiglottis, the elastic cartilage is one of the most elastic cartilage, responsible for conducting sound waves and absorbing them.