So now, let's move on to the three different types of joints. We have the fixed joints, the synovial joints, as well as our carthalaginous joints. So the fixed joints are also known as our immovable or fibrous joints. And these are the joints that connect our bones and hold those bones very strongly, very tightly. And so these fibrous joints basically allow no movement between the bone and these fibers. Joints are found in the skull as well as around our teeth.