Synarthrosis refers to a type of joint that allows little to no movement between the bones it connects. These joints are primarily found in areas where stability and strength are essential, such as the skull sutures. The rigid structure of synarthroses helps protect vital organs and maintain the integrity of the skeletal system. There are several types of synarthrotic joints, including fibrous joints and cartilaginous joints. Fibrous joints, like those in the skull, are connected by dense connective tissue, while cartilaginous joints, such as the pubic symphysis, are connected by cartilage. Both types serve to provide stability and support to the body.