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Anatomy · Thorax
Sample itemWhat structure lies between the lungs in the thoracic cavity?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Mediastinum
The core Thorax relationship supports Mediastinum; it is the response that directly accounts for the structural location or physiological change described.
Option by option
A. Costal cartilage
Costal cartilage is not consistent with the key finding in the stem.
B. Pleural recess
Pleural recess is associated with a different thorax relationship.
C. Diaphragmatic crura
Diaphragmatic crura does not fulfill the structural or functional role requested.
D. Mediastinum (correct)
Correct. Mediastinum is directly supported by the central clue.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.