INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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Which fascial space is a fast route from cranial cavity to mediastinum?

Retropharyngeal space
Sublingual space
Submandibular space
Parapharyngeal space

The correct answer is: Retropharyngeal space

One possible explanation could be The retropharyngeal space is a fascial space in the head and neck that provides a fast route for infections or cancer cells to spread from the cranial cavity to the mediastinum, which is the space in the thoracic cavity containing the heart, esophagus, and trachea. This pathway is faster compared to the other options mentioned, such as the sublingual, submandibular, or parapharyngeal spaces, as the retropharyngeal space is located directly behind the pharynx and connects to the mediastinum via the prevertebral fascia. Thus, this makes it easier for infections or cancer to spread quickly to the mediastinum.