mediastinum
The tissues and organs located directly behind the sternum between the lungs. Contains the heart and its large vessels, the esophagus, thymus, lymph nodes and other structures and tissues.
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What do I need in my first aid kit?
First aid is important for a number of situations that don’t require a trip to the hospital or emergency room. These situations include minor falls, bee stings, burns, allergic reactions, and other...
