Magnetic Resonance Imaging (MRI) Practice Test

The articular disc in the temporomandibular joint (TMJ) plays a crucial role in facilitating smooth movement and function of the joint during activities such as chewing and speaking. This disc is specifically located between the mandibular fossa of the temporal bone and the mandibular condyle.

The mandibular fossa is a concave area on the temporal bone that serves as the socket or receptacle, while the mandibular condyle is the rounded end of the mandible that articulates with the fossa. The articular disc acts as a cushion and allows for better movement by distributing stress across the joint, promoting a more efficient range of motion and minimizing wear on the bones.

Understanding the correct placement of the articular disc is fundamental in fields such as dentistry and orthodontics, given that misalignment or degeneration of this structure can lead to a variety of TMJ disorders, resulting in pain and dysfunction.