Cartilaginous joints are connected entirely by cartilage (fibrocartilage or hyaline).^[1] Cartilaginous joints allow more movement between bones than a fibrous joint but less than the highly mobile synovial joint. An example would be the joint between the manubrium and the sternum. Cartilaginous joints also forms the growth regions of immature long bones and the intervertebral discs of the spinal column.

Primary cartilaginous joints[link]

Known as "synchondroses". Bones are connected by hyaline cartilage and sometimes occur between ossification centers. This cartilage may ossify with age.

Examples in humans are the "growth plates" between ossification centers in long bones. These joints here allow for only a little movement, such as in the spine or ribs.

Secondary cartilaginous joints[link]

Known as "symphyses". Fibrocartilaginous and hyaline joints, usually occurring in the midline.

Examples in human anatomy would be the manubriosternal joint (between the manubrium and the sternum), intervertebral discs, and the pubic symphysis.

Articulating bones at a symphysis are covered with hyaline cartilage and have a thick, fairly compressible pad of fibrocartilage between them.

References[link]

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