Articular disk

Articular disk

Infobox Anatomy
Name = Articular disk
Latin = discus articularis
GraySubject = 70
GrayPage = 285


Caption = Diagrammatic section of a diarthrodial joint, with an articular disk.


Caption2 = Vertical section through the articulations at the wrist, showing the synovial cavities. (Articular disk labeled at center right.)
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DorlandsPre = d_22
DorlandsSuf = 12300651
The articular disk (or disc) is a thin, oval plate of fibrocartilage present in several joints which separates synovial cavities. This separation of the cavity space allows for separate movements to occur in each space.

The presence of an articular disk also permits a more even distribution of forces between the articulating surfaces of bones, increases the stability of the joint, and aids in directing the flow of synovial fluid to areas of the articular cartilage that experience the most friction.

The term "meniscus" has a very similar meaning. [ [http://anatomy.med.umich.edu/modules/joints_module/joints_13.html Module - Introduction to Joints ] ]


=Additional

ee also

* Triangular fibrocartilage ("articular disk of the distal radioulnar articulation")
* Articular disk of the temporomandibular joint
* Articular disk of sternoclavicular articulation

References

External links

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Look at other dictionaries:

  • articular disk — n a cartilage (as the meniscus of the temporomandibular joint) interposed between two articular surfaces and partially or completely separating the joint cavity into two compartments * * * 1. discus articularis. 2. meniscus articularis …   Medical dictionary

  • Articular disk of the temporomandibular joint — Infobox Anatomy Name = PAGENAME Latin = discus articularis articulationis temporomandibularis GraySubject = 75 GrayPage = 298 Caption = Sagittal section of the articulation of the mandible. (Articular disk visible at center.) Caption2 = Precursor …   Wikipedia

  • Articular disk of sternoclavicular articulation — Infobox Anatomy Name = PAGENAME Latin = discus articularis articulationis sternoclavicularis GraySubject = 81 GrayPage = 314 Caption = Sternoclavicular articulation. Anterior view. (Articular disk labeled at upper right.) Caption2 = Precursor =… …   Wikipedia

  • articular disk — noun : a cartilage interposed between two articular surfaces and partially or completely separating the joint cavity into two compartments …   Useful english dictionary

  • intra-articular disk — discus articularis …   Medical dictionary

  • disk — 1. A round, flat plate; any approximately flat circular structure. 2. SYN: lamella (2). 3. In dentistry, a circular piece of thin paper or other material, coated with an abrasive substance, used for cutting and polishing tee …   Medical dictionary

  • Joint — A joint is the area where two bones are attached for the purpose of motion of body parts. A joint is usually formed of fibrous connective tissue and cartilage. An articulation or an arthrosis is the same as a joint. Joints are grouped according… …   Medical dictionary

  • Temporomandibular joint — Infobox Anatomy Name = Temporomandibular joint Latin = articulatio temporomandibularis GraySubject = 75 GrayPage = 297 Caption = Articulation of the mandible. Lateral aspect. Caption2 = Articulation of the mandible. Medial aspect. Precursor =… …   Wikipedia

  • Cartilage — Firm, rubbery tissue that cushions bones at joints. A more flexible kind of cartilage connects muscles with bones and makes up other parts of the body, such as the larynx and the outside parts of the ears. * * * A connective tissue characterized… …   Medical dictionary

  • discus — SYN: lamella (2). [L. fr. G. diskos, a quoit, disk] d. articularis [TA] SYN: articular disk. d. articularis acromioclavicularis [TA] SYN: articular disk of acromioclavicular joint. d. articularis radioulnaris distalis [TA] SYN: articular disk of… …   Medical dictionary

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