The xiphisternal joint (or xiphisternal symphysis) is a location near the bottom of the
sternum, where the
body of the sternum
The sternum or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood vessels from injury. Shap ...
and the
xiphoid process meet. It is structurally classified as a synchondrosis, and functionally classified as a synarthrosis. The joint usually ossifies by the fourth decade of life,
forming a
synostosis
Synostosis (plural: synostoses) is fusion of two or more bones. It can be normal in puberty, fusion of the epiphyseal plate to become the epiphyseal line, or abnormal. When synostosis is abnormal it is a type of dysostosis. Examples of synostoses ...
.
It is the T9 vertebra.
References
External links
Anatomy Expert
Bones of the thorax
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