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How do fibrous joints differ from cartilaginous and synovial joints?
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skeleton
Selected vertebrate skeletons.
Joints are structurally classified based on the tissue connecting the bones and the presence of a joint cavity. They differ primarily in their composition and the degree of movement they permit:1
- Fibrous joints: These are connected by dense connective tissue (specifically collagen fibers) and typically allow little to no movement. Examples include sutures in the skull and the gomphosis joints of the teeth.12
- Cartilaginous joints: These are joined by cartilage and permit limited movement. This category includes symphyses, such as the intervertebral disks and the symphysis pubis, which act as buffers against shock.13
- Synovial joints: Also known as diarthroses, these are the most complex joints. They are distinguished by the presence of a fluid-filled joint cavity, which allows for the greatest range of motion. These joints feature a synovial membrane that secretes synovial fluid to lubricate the articulating surfaces.415