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Sternum   Listen
noun
Sternum  n.  (pl. L. sterna, E. sternums)  
1.
(Anat.) A plate of cartilage, or a series of bony or cartilaginous plates or segments, in the median line of the pectoral skeleton of most vertebrates above fishes; the breastbone. Note: The sternum is connected with the ribs or the pectorial girdle, or with both. In man it is a flat bone, broad anteriorly, narrowed behind, and connected with the clavicles and the cartilages of the seven anterior pairs of ribs. In most birds it has a high median keel for the attachment of the muscles of the wings.
2.
(Zool.) The ventral part of any one of the somites of an arthropod.






Collaborative International Dictionary of English 0.48








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"Sternum" Quotes from Famous Books



... If my views are at all correct, the wing of the Apteryx (113/3. "Origin of Species," Edition VI., page 140.) cannot be (page 452 of the "Origin") a nascent organ, as these wings are useless. I dare not trust to memory, but I know I found the whole sternum always reduced in size in all the fancy and confined pigeons relatively to the same bones in the wild Rock-pigeon: the keel was generally still further reduced relatively to the reduced length of the sternum; but in some breeds ...
— More Letters of Charles Darwin - Volume I (of II) • Charles Darwin

... clung with terror to his upper jaw, as tight as do the bellies of the fresh and slimy soles, paired together by some fishwoman; but if his tongue was paralysed, his heart was not—it throbbed against his ribs with a violence which threatened their dislocation from the sternum, and with a sound which reverberated through the dark, damp subterrene——." I think that will do. There's ...
— Olla Podrida • Frederick Marryat



Words linked to "Sternum" :   chest, thorax, gladiolus, os, pectus, sternal



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