Articular Disk - Wikipedia

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Appearance move to sidebar hide From Wikipedia, the free encyclopedia (Redirected from Articular disk) Anatomical feature in joint cavities

Articular disc
Vertical section through the articulations at the wrist, showing the synovial cavities. (Articular disk labeled at center right.)
Details
Identifiers
Latin	discus articularis
TA98	A03.0.00.032
TA2	1543
FMA	76690
Anatomical terminology[edit on Wikidata]

The articular disc (or disk) 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.[1]

Additional images

[edit]

• Sternoclavicular articulation. Anterior view.
• Diagrammatic section of a diarthrodial joint, with an articular disk.

See also

[edit]

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

References

[edit]

1. ^ Module – Introduction to Joints

External links

[edit]

• Anatomy figure: 10:06-15 at Human Anatomy Online, SUNY Downstate Medical Center
• Hand kinesiology at the University of Kansas Medical Center

v t e Joints
Types	Fibrous Gomphosis Suture Syndesmosis Interosseous membrane Cartilaginous Synchondrosis Symphysis synovial: Plane joint 1° Hinge joint Pivot joint 2° Condyloid joint Saddle joint 3° Ball and socket joint synostosis by range of motion: Synarthrosis Amphiarthrosis Diarthrosis
Terminology	Kinesiology Anatomical terms of motion Agonist/Antagonist
Motions	general: Flexion/Extension Adduction/Abduction Internal rotation/External rotation Elevation/Depression specialized/upper limbs: Protraction/Retraction Supination/Pronation specialized/lower limbs: Plantarflexion/Dorsiflexion Eversion/Inversion
Components	capsular: Joint capsule Synovial membrane Fibrous membrane Synovial fluid Synovial bursa Articular disk/Meniscus extracapsular: Ligament Enthesis

Authority control databases	Terminologia Anatomica

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