humerus


humerus
/hyooh"meuhr euhs/ or, often, /yooh"-/, n., pl. humeri /-meuh ruy'/. Anat.
1. the long bone in the arm of humans extending from the shoulder to the elbow. See diagrams under shoulder, skeleton.
2. brachium.
3. Zool. a corresponding bone, structure, or region in the forelimbs of other animals or in the wings of birds or insects.
[1350-1400; ME < L (h)umerus shoulder; c. Gk ômos, Goth ams, Skt ámsas]

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bone
 long bone of the upper limb or forelimb of land vertebrates that forms the shoulder joint above, where it articulates with a lateral depression of the shoulder blade (glenoid cavity of scapula), and the elbow joint below, where it articulates with projections of the ulna and the radius.

      In humans the articular surface of the head of the humerus is hemispherical; two rounded projections below and to one side receive, from the scapula, muscles that rotate the arm. The shaft is triangular in cross section and roughened where muscles attach. The lower end of the humerus includes two smooth articular surfaces (capitulum and trochlea), two depressions (fossae) that form part of the elbow joint, and two projections (epicondyles). The capitulum laterally articulates with the radius; the trochlea, a spool-shaped surface, articulates with the ulna. The two depressions—the olecranon fossa, behind and above the trochlea, and the coronoid fossa, in front and above—receive projections of the ulna as the elbow is alternately straightened and flexed. The epicondyles, one on either side of the bone, provide attachment for muscles concerned with movements of the forearm and fingers.

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Universalium. 2010.

Look at other dictionaries:

  • humérus — [ ymerys ] n. m. • XVIe; lat. humerus « épaule » ♦ Os long constituant le squelette du bras, de l épaule au coude. Saillies de l extrémité supérieure (⇒ trochin, trochiter) , inférieure (⇒ condyle, épicondyle, trochlée) de l humérus. Tête de l… …   Encyclopédie Universelle

  • humerus — HÚMERUS s.n. Os lung, pereche, cuprins între umăr şi cot, formând scheletul braţului. – Din fr. humérus, lat. humerus. Trimis de gall, 13.09.2007. Sursa: DEX 98  húmerus s. n., pl. húmeruşi Trimis de siveco, 10.08.2004. Sursa: Dicţionar… …   Dicționar Român

  • Humerus — Humérus 1:tête de l humérus 2:sillon intertuberculaire 3:tubercule majeur 4:tubercule mineur 5:crête du tubercule mineur 6:crête du tubercule majeur 7:tubérosité deltoïdienne 8:crête supracondylaire latérale 9:fosse radiale 10:épicondyle latéral… …   Wikipédia en Français

  • Humerus — Hu me*rus, n.; pl. {Humeri}. [L.] (Anat.) (a) The bone of the brachium, or upper part of the arm or fore limb. (b) The part of the limb containing the humerus; the brachium. [1913 Webster] …   The Collaborative International Dictionary of English

  • humerus — [hyo͞o′mər əs] n. pl. humeri [hyo͞o′mərī] [L humerus, umerus, the shoulder, upper arm < IE * om(e)sos, the shoulder > Sans áṃsa , Gr ōmos] the bone of the upper arm or forelimb, extending from the shoulder to the elbow: see SKELETON …   English World dictionary

  • Humĕrus — (lat.), 1) Schulter, Schulterblatt; 2) Oberarm, Oberarmbein. Daher humerāils (humerarius), was sich auf die Schulter od. auf den Oberarm bezieht; daher H. arteria, H. vena, Armarterie, Armvene (s. b.) …   Pierer's Universal-Lexikon

  • Humĕrus — (lat.), der Oberarm, s. Arm …   Meyers Großes Konversations-Lexikon

  • Humerus —   [lateinisch] der, /...ri, der Oberarmknochen (Arm) …   Universal-Lexikon

  • Humerus — Humerus, Oberarmknochen ⇒ Stylopodium …   Deutsch wörterbuch der biologie

  • humerus — 1706, bone of the upper arm, originally (14c.) shoulder, a misspelled borrowing of L. umerus shoulder, from PIE *om(e)so (Cf. Skt. amsah, Gk. omos, O.N. ass, Goth. ams shoulder ) …   Etymology dictionary

  • humerus — ► NOUN (pl. humeri) Anatomy ▪ the bone of the upper arm or forelimb, between the shoulder and the elbow. DERIVATIVES humeral adjective. ORIGIN Latin, shoulder …   English terms dictionary


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