Medical Terminology / Unit 4 MedTerm 0221 short lesson, about 20 seconds
The Mediastinum
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The idea
The mediastinum is the space in the thoracic cavity between the lungs, containing the heart, esophagus, and trachea.
In practice
A mediastinal mass lies between the lungs rather than within one.
Where people slip
The mediastinum is a region of the thoracic cavity, not a separate cavity.
Your place on the trail
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