Cartilage is a type of dense, tissue like substance that is hard in consistency. Cartilage is composed of cells called as Chondrocytes. These cells are dispersed in a gel like matrix. Cartilage is not supplied by blood vessels but is kept alive by the nutrients diffusing through the matrix. Cartilage is found in joints, nose, ear, throat, the space between each vertebra and even in the rib cage. Cartilages have a very good nerve supply which makes any injury to them very painful.There are three main types of cartilage: hyaline, elastic and fibrocartilage. Cartilage usually covers the articulating surfaces of the joints. In the hip they are found covering the head of the femur bone and the cavity that holds the head in the pelvis.