sternum
Other forms: sternums
Your sternum is your breastbone, the flat plate at the top of your rib cage. Mammals and birds — and even arachnids, or spiders — have a sternum.
If you study human anatomy, you'll learn that the sternum is a long, flat, T-shaped bone made of fused segments. The rib cage attaches the sternum to the spine, or vertebrae. The word itself comes from the Greek sternon, "chest, breast, or breastbone," from a root that means "flat surface."
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the flat bone that articulates with the clavicles and the first seven pairs of ribssynonyms: breastbone
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Vocabulary lists containing sternum
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