Which cavity within the thoracic cavity contains the heart, esophagus, and trachea?

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Multiple Choice

Which cavity within the thoracic cavity contains the heart, esophagus, and trachea?

Explanation:
The central thoracic space called the mediastinum houses the heart, esophagus, and trachea. Within that region, the heart sits inside its own protective sac, the pericardial cavity, which is a subset of the mediastinum. The esophagus and trachea run through the mediastinum but are not inside the heart’s pericardial sac. So, the cavity that contains all three structures is the mediastinal cavity (mediastinum). The pleural cavities hold the lungs, and the abdominopelvic cavity lies below the diaphragm.

The central thoracic space called the mediastinum houses the heart, esophagus, and trachea. Within that region, the heart sits inside its own protective sac, the pericardial cavity, which is a subset of the mediastinum. The esophagus and trachea run through the mediastinum but are not inside the heart’s pericardial sac. So, the cavity that contains all three structures is the mediastinal cavity (mediastinum). The pleural cavities hold the lungs, and the abdominopelvic cavity lies below the diaphragm.

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