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Definitions for: Sternum [n] the flat bone that articulates with the clavicles and the first seven pairs of ribs
Webster (1913) Definition: Ster"num, n.; pl. L. Sterna, E. Sternums. [NL.,
from Gr. ?, the breast, chest.]
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. (Zo["o]l.) The ventral part of any one of the somites of
an arthropod.
Synonyms: breastbone
See Also: axial skeleton, bone, chest, corpus sternum, gladiolus, manubrium, os, pectus, thorax, xiphoid process
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