It also contains macrophages that eat up harmful material. These joints provide a wide range of movement to our connecting bones. Unlike in this case where the range of movement was none. The purpose of fixed joints is to basically hold our bones in place whereas the point of synovial joints is to basically create a wide range of movement to allow a wide range of movement. Now, the final type of joint is our cartilaginous joint and our cartilageinous joint basically allows very little movement to no movement. So usually the movement due to these joints is slightly more than our fixed joints but it's much less than our synovial joint.