Pronunciation: ster'num, -ni, -na
A long flat bone, articulating with the cartilages of the first seven ribs and with the clavicle, forming the middle part of the anterior wall of the thorax; it consists of three portions: the corpus or body, the manubrium, and the xiphoid process.
Synonym(s): breast bone
[Mod. L. fr. G. sternon, the chest]
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