Articular tubercle

Articular Tubercle

The Articular Tubercle also known as the eminentia articularis is a bony prominence located on the inferior aspect of the temporal bone in the human skull. It is an important anatomical structure in the temporomandibular joint (TMJ).

Etymology

The term "Articular Tubercle" is derived from the Latin words "articulus" meaning joint, and "tuberculum" meaning small swelling. The term "eminentia articularis" is derived from the Latin words "eminentia" meaning prominence, and "articularis" meaning pertaining to a joint.

Anatomy

The Articular Tubercle is a rounded elevation on the inferior aspect of the Zygomatic process of the temporal bone. It is located anterior to the Mandibular fossa, and forms the anterior boundary of the mandibular fossa. The Articular Tubercle serves as an attachment site for the lateral ligament of the TMJ.

Function

The Articular Tubercle plays a crucial role in the movement of the temporomandibular joint. It acts as a stopper, preventing the condyle of the mandible from moving too far anteriorly. This helps to prevent dislocation of the temporomandibular joint.

Clinical Significance

Abnormalities or damage to the Articular Tubercle can lead to a variety of clinical conditions. These include temporomandibular joint dysfunction (TMD), arthritis, and dislocation of the temporomandibular joint. Treatment options for these conditions can range from conservative management to surgical intervention.

See Also

• Temporal bone
• Temporomandibular joint
• Zygomatic process
• Mandibular fossa
• Lateral ligament of the TMJ
• Condyle of the mandible
• Dislocation
• Temporomandibular joint dysfunction
• Arthritis

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