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The temporomandibular joints are one of the few synovial joints in the human body with an articular disc, another being the sternoclavicular joint. The disc divides each joint into two compartments, the lower and upper compartments. These two compartments are synovial cavities, which consist of an upper and a lower synovial cavity.
The temporomandibular ligament originates from the lower articular tubercle of the zygomatic arch. [1] This usually has a rough surface for the ligament to attach to. [1] It attaches to the lateral and posterior border of the neck of the mandible. [1] It consists of two short, narrow fasciculi, one in front of the other. It is broader above ...
The articular disk of the temporomandibular joint is a thin, oval plate made of non-vascular fibrous connective tissue located between the mandible's condyloid process and the cranium's mandibular fossa. Its upper surface is concavo-convex from before backward, to accommodate itself to the form of the mandibular fossa and the articular tubercle ...
Temporomandibular joint dysfunction is a common disorder of these joints, characterized by pain, clicking and limitation of mandibular movement. [4] Especially in the therian mammal , the premaxilla that constituted the anterior tip of the upper jaw in reptiles has reduced in size; and most of the mesenchyme at the ancestral upper jaw tip has ...
The sphenomandibular ligament (internal lateral ligament) is one of the three ligaments of the temporomandibular joint. It is situated medially to - and generally separate from - the articular capsule of the joint. [1]: 671 Superiorly, it is attached to the spine of the sphenoid bone; inferiorly, it is attached to the lingula of mandible.
Temporomandibular Joint: Any pain, clicking, crepitus or deviation should be noted and appropriate questions asked to find out more. Maxillary and Mandibular Arch: Examine each arch individually and note any signs of occlusal loading, faceting and microfractures within the teeth. Intercuspal Position (ICP) Note overbite and overjet.
The articular tubercle is the site of attachment of the lateral ligament of the temporomandibular joint. [2] ... "Anatomy diagram: 34257.000-1". Roche Lexicon ...
Sometimes, "temporomandibular joint dysfunction" is described as the most common form of temporomandibular disorder, [18] whereas many other sources use the term 'temporomandibular disorder' synonymously, or instead of the term 'temporomandibular joint dysfunction'. In turn, the term 'temporomandibular disorder' is defined as "musculoskeletal ...