HOSA Dental Terminology Practice

What anatomical structure does the articular eminence form?

1. Anterior boundary of the glenoid fossa

2. Lateral boundary of the mandible

3. Base of the skull

4. Floor of the nasal cavity

The correct answer is: Anterior boundary of the glenoid fossa

The articular eminence is a bony prominence located on the temporal bone, specifically in the region of the temporomandibular joint (TMJ). This structure plays a vital role as it forms the anterior boundary of the glenoid fossa, which is the concave portion of the temporal bone that accommodates the head of the mandible during jaw movements. Understanding the anatomy of the TMJ is crucial for dental professionals, as it directly relates to functions such as chewing and speaking, as well as various conditions that can affect jaw function. The articular eminence not only supports the joint during movements but also helps to maintain its proper alignment and stability. This anatomical relationship is imperative for the functioning of the mandible and the overall mechanics of the jaw. In contrast, the other structures listed—such as the lateral boundary of the mandible, the base of the skull, and the floor of the nasal cavity—do not involve the articular eminence directly, as they pertain to different anatomical regions and functions within the head and neck.