Articular


Articular

The articular bone is in the lower jaw of most tetrapods, including amphibians, sauropsids ("reptiles"), birds and early synapsids. In these animals it is connected to two other lower jaw bones, the suprangular and the angular; and it forms the jaw joint by articulating with the quadrate bone of the skull.

But in mammals the articular and quadrate bones have migrated to the middle ear and are known as the malleus and incus. In fact paleontologists regard this modification as the defining characteristic of mammals. [cite web | url=http://www.palaeos.com/Vertebrates/Units/Unit420/420.000.html | title=Mammaliformes: Overview - Palaeos]

References


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Look at other dictionaries:

  • articular — ARTICULÁR, Ă, articulari, e, adj. Privitor la articulaţiile corpului, care se produce la articulaţiile corpului. – Din fr. articulaire, lat. articularis. Trimis de cata, 14.03.2004. Sursa: DEX 98  articulár adj. m., pl. articuláre; f …   Dicționar Român

  • articular — verbo transitivo 1. Unir (una persona) [dos cosas] de manera que haya posibilidad de movimiento entre ambas: Si articulas estas dos piezas de la aspiradora podrás limpiar debajo del sofá sin agacharte. 2. Unir (una persona …   Diccionario Salamanca de la Lengua Española

  • Articular — Ar*tic u*lar, a. [L. articularis: cf. F. articulaire. See {Article}, n.] Of or pertaining to the joints; as, an articular disease; an articular process. [1913 Webster] …   The Collaborative International Dictionary of English

  • articular — adj. 2 g. 1. Da articulação ou a ela relativo. = ARTICULATÓRIO 2. Relativo a artigo (ex.: redação articular)   ‣ Etimologia: latim articularis, e articular v. tr. 1. Unir ou ligar por meio de articulação. 2. Reconstituir a articulação… …   Dicionário da Língua Portuguesa

  • articular — Se conjuga como: amar Infinitivo: Gerundio: Participio: articular articulando articulado     Indicativo   presente imperfecto pretérito futuro condicional yo tú él, ella, Ud. nosotros vosotros ellos, ellas, Uds. articulo articulas articula… …   Wordreference Spanish Conjugations Dictionary

  • articular — [är tik′yo͞o lər, är tik′yələr] adj. [L articularis < articulus: see ARTICLE] of a joint or joints [an articular inflammation] …   English World dictionary

  • Articular — Ar*tic u*lar, Articulary Ar*tic u*la*ry, n. (Anat.) A bone in the base of the lower jaw of many birds, reptiles, amphibians, and fishes. [1913 Webster] …   The Collaborative International Dictionary of English

  • Articŭlar — (v. lat. Articulāris), was auf ein Gelenk Bezug hat; so Articulararterien, Gelenkarterien, u. Articularis morbus, die Gicht …   Pierer's Universal-Lexikon

  • articular — Relativo a una articulación. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • articular — (adj.) from L. articularis pertaining to the joints, from articulus (see ARTICULATE (Cf. articulate) (v.)) …   Etymology dictionary

  • articular — ► ADJECTIVE Anatomy ▪ of or relating to a joint …   English terms dictionary


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