Anything pertaining to the ribs.
adj. of or relating to the ribs.
a cartilage that connects a *rib to the breastbone (*sternum). The first seven ribs (true ribs) are directly connected to the sternum by individual costal cartilages. The next three ribs are indirectly connected to the sternum by three costal cartilages, each of which is connected to the one immediately above it.... costal cartilage
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