Synarthrosis
no movement
Synarthrosis refers to a type of joint that is largely immovable and is characterized by a strong union of bone tissue between the articulating surfaces. Such joints typically occur in regions that require stability and strength, and hence they lack a joint cavity, cartilage and synovial fluid.
There are three types of synarthrosis joints, including fibrous, cartilaginous and bony fusion joints. Fibrous synarthrosis joints occur where bones are united by fibrous connective tissue, such as in the sutures between bones of the skull. Cartilaginous synarthrosis joints, on the other hand, occur where bones are connected by hyaline cartilage or fibrocartilage, as seen in the intervertebral discs of the spine. Finally, bony fusion joints occur where bones become fused together through the process of ossification, as seen in the fusion of the skull bones during development.
In summary, synarthrosis joints are characterized by their immovability and strength, and they provide stability to the body where it is needed.
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