scapula

/skap"yeuh leuh/, n., pl. scapulas, scapulae /-lee'/.
1. Anat. either of two flat, triangular bones, each forming the back part of a shoulder in humans; shoulder blade. See diags. under shoulder, skeleton.
2. Zool. a dorsal bone of the pectoral girdle.
[1570-80; < L: shoulder]

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also called  shoulder blade 
 either of two large bones of the shoulder girdle in vertebrates. In humans they are triangular and lie on the upper back between the levels of the second and eighth ribs. A scapula's posterior surface is crossed obliquely by a prominent ridge, the spine, which divides the bone into two concave areas, the supraspinous and infraspinous fossae. The spine and fossae give attachment to muscles that act in rotating the arm. The spine ends in the acromion, a process that articulates with the clavicle, or collarbone, in front and helps form the upper part of the shoulder socket. The lateral apex of the triangle is broadened and presents a shallow cavity, the glenoid cavity, which articulates with the head of the bone of the upper arm, the humerus, to form the shoulder joint. Overhanging the glenoid cavity is a beaklike projection, the coracoid process, which completes the shoulder socket. To the margins of the scapula are attached muscles that aid in moving or fixing the shoulder as demanded by movements of the upper limb.

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Universalium. 2010.

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Look at other dictionaries:

  • Scapula — Situation de la scapula chez l homme en vue dorsale La scapula (anciennement omoplate) est un os plat, pair, de forme triangulaire, situé à la partie postéro supérieure du thorax. Sommaire 1 …   Wikipédia en Français

  • scapulă — SCÁPULĂ, scapule, s.f. Os lat care, împreună cu clavicula şi cu humerusul, constituie umărul; omoplat. – Din lat. scapula. Trimis de IoanSoleriu, 13.09.2007. Sursa: DEX 98  SCÁPULĂ s. v. omoplat. Trimis de siveco, 13.09.2007. Sursa: Sinonime … …   Dicționar Român

  • Scapula — (lat.: Schulterblatt) ist der Name folgender Personen: Quintus Ostorius Scapula, römischer Präfekt Publius Ostorius Scapula, römischer Statthalter der Provinz Britannien Publius Cornelius Scapula , römischer Konsul im 4. Jahrhundert Scapula steht …   Deutsch Wikipedia

  • scapula — ● scapula nom féminin Os de la ceinture scapulaire des vertébrés. (Chez les mammifères et l homme en particulier, la scapula est fusionnée au coracoïde et forme l omoplate.) …   Encyclopédie Universelle

  • scapula — (n.) shoulder blade, 1570s, Mod.L., from L.L. scapula shoulder, from L. scapulae (pl.) shoulders, shoulder blades, of unknown origin; perhaps originally spades, shovels (Cf. Gk. skaphein to dig out ), on notion of similar shape, but actual… …   Etymology dictionary

  • Scapula — Scap u*la (sk[a^]p [ u]*l[.a]), n.; pl. L. {Scapul[ae]}, E. {Scapulas}. [L.] 1. (Anat.) The principal bone of the shoulder girdle in mammals; the shoulder blade. [1913 Webster] 2. (Zo[ o]l.) One of the plates from which the arms of a crinoid… …   The Collaborative International Dictionary of English

  • Scapŭla [1] — Scapŭla (lat.), 1) das Schulterblatt; 2) an Maschinen ein dem Schulterblatt ähnlicher Obertheil …   Pierer's Universal-Lexikon

  • Scapŭla [2] — Scapŭla, eine zur römischen Cornelia gens gehörige Familie: 1) S., war nach der Niederlage des Scipio bei Thapsus mit Aponius von den spanischen Soldaten zum Anführer gewählt worden u. hatte das Bätische Spanien dem Cäsar abwendig gemacht;… …   Pierer's Universal-Lexikon

  • Scapŭla — (lat.), Schulterblatt, s. Schultergürtel …   Meyers Großes Konversations-Lexikon

  • Scapula — Scapŭla (lat.), das Schulterblatt (s. Schultern) …   Kleines Konversations-Lexikon

  • Scapula —   [lateinisch] die, /...lae, Anatomie: das Schulterblatt.   …   Universal-Lexikon

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