sternum

sternum
n.; pl. sterna
the breastbone: a flat bone, 15–20 cm long, extending from the base of the neck to just below the diaphragm and forming the front part of the skeleton of the thorax. The sternum articulates with the collar bones (see clavicle) and the costal cartilages of the first seven pairs of ribs. It consists of three sections: the middle and longest section – the body or gladiolus – is attached to the manubrium at the top and the xiphoid (or ensiform) process at the bottom. The manubrium slopes back from the body so that the junction between the two parts forms an angle (angle of Louis or sternal angle).
Derivatives:
sternal adj.

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  • sternum — [ stɛrnɔm ] n. m. • 1555; lat. méd., gr. sternon ♦ Os plat, allongé, situé au milieu de la face antérieure du thorax, s articulant avec les sept premières paires de côtes et, par son segment supérieur (⇒ manubrium), avec les deux clavicules.… …   Encyclopédie Universelle

  • Sternum — 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… …   The Collaborative International Dictionary of English

  • Sternum — (lat., v. gr.), s. Brustbein …   Pierer's Universal-Lexikon

  • Sternum — (lat.), das Brustbein …   Meyers Großes Konversations-Lexikon

  • Sternum — (lat.), das Brustbein (s. Brust) …   Kleines Konversations-Lexikon

  • Sternum — Sternum, lat., das Brustbein …   Herders Conversations-Lexikon

  • Sternum — Sternum, 1) Brustbein der Wirbeltiere; 2) ventraler Bereich eines Segments des Insektenkörpers …   Deutsch wörterbuch der biologie

  • sternum — 1660s, from Gk. sternon chest, breast, breastbone (in Homer, only of males), from PIE *stre to to stretch, extend, from a root meaning flat surface, related to stornynai to spread out (see STRUCTURE (Cf. structure)), on the notion of the chest as …   Etymology dictionary

  • sternum — stèrnum m DEFINICIJA anat. široka, plosnata kost, s prednje strane zatvara prsni koš i spaja prednje krajeve gornjih 7 rebara; prsna kost ETIMOLOGIJA nlat. ← grč. stérnon: prsa …   Hrvatski jezični portal

  • sternum — ► NOUN (pl. sternums or sterna) ▪ the breastbone. ORIGIN Greek sternon chest …   English terms dictionary

  • sternum — [stʉr′nəm] n. pl. sternums or sterna [ModL < Gr sternon, the breastbone < IE base * ster , to spread out, STREW] a thin, flat structure of bone and cartilage to which most of the ribs are attached in the front of the chest in most… …   English World dictionary

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