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. And these types of joints consist entirely of cartilage, either hyland cartilage or the fiber cartilage. And these are the joints that are found in our rib cage as well as in our pubic synthesis which is our bone found in our hip. So basically, if we think of our rib cage, the ribcage actually has to expand back and forth as we breathe in and out.