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Articular Disk Information

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.[1]

Contents

Additional images

See also

References

  1. ^ Module - Introduction to Joints

External links

· · Joints (TA A03.0, TH H3.02, GA 3.284)
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)

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: Articular capsule (Synovial membrane, Fibrous membrane) · Synovial fluid · Synovial bursa · Articular disk/Meniscus

extracapsular: Ligament · Enthesis

: JNT

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