Joint cartilage is a smooth, flexible tissue that covers the ends of bones in a joint. It acts as a cushion, reducing friction and allowing for smooth movement between bones during activities like walking or bending. This cartilage is essential for maintaining joint health and function. There are different types of joint cartilage, including hyaline cartilage, which is the most common type found in joints. Another type is fibrocartilage, which provides additional support and stability in areas like the knee and spine. Proper care, including exercise and a healthy diet, can help maintain the integrity of joint cartilage.