Which structure lies in the mediastinum besides the heart?

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Multiple Choice

Which structure lies in the mediastinum besides the heart?

Explanation:
The mediastinum contains several central thoracic structures in addition to the heart, and the esophagus runs through this region. It travels in the posterior part of the mediastinum, behind the heart and trachea, from the pharynx down to the stomach, and exits the thorax via the diaphragmatic hiatus. The other options aren’t located in the mediastinum: bronchioles are within the lungs, the lungs themselves occupy the pleural cavities lateral to the mediastinum, and the larynx sits in the neck above the thorax. So the esophagus is the structure that lies in the mediastinum besides the heart.

The mediastinum contains several central thoracic structures in addition to the heart, and the esophagus runs through this region. It travels in the posterior part of the mediastinum, behind the heart and trachea, from the pharynx down to the stomach, and exits the thorax via the diaphragmatic hiatus. The other options aren’t located in the mediastinum: bronchioles are within the lungs, the lungs themselves occupy the pleural cavities lateral to the mediastinum, and the larynx sits in the neck above the thorax. So the esophagus is the structure that lies in the mediastinum besides the heart.

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