Fixed joints, also known as fibrous joints, are connections between bones that do not allow any movement. These joints are held together by dense connective tissue, providing stability and strength. An example of fixed joints can be found in the skull, where the bones are fused together to protect the brain. These joints serve an important purpose in the body by maintaining the structure and integrity of certain areas. Unlike synovial joints, which allow for a wide range of motion, fixed joints are designed for stability, making them essential in areas where movement could compromise function or safety.