Dr Andrew Dixon et al.

Synchondroses are primary cartilaginous joints mainly found in the developing skeleton, but a few also persist in the mature skeleton as normal structures or as variants.


Synchondroses are cartilaginous unions between bone composed entirely of hyaline cartilage. Most exist between ossification centres of developing bones.

Immature skeletal examples
Mature skeletal examples
  • first sternocostal joint between first rib and manubrium 
    • all other sternocostal joints are synovial joints
  • petro-occipital synchondrosis at the skull base
Variant examples
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Article information

rID: 42745
Section: Anatomy
Synonyms or Alternate Spellings:
  • Synchondroses

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Cases and figures

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    Figure 1: growth plate
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