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.
Last Updated
October 7, 2025
October 7, 2025
Last updated: October 7, 2025.
This article was contributed by .
Explore More
Immunization Schedules
Staying up to date with vaccines is one of the best ways to protect your health and prevent serious disease. These immunization schedules show when children, teens and adults should receive recomme...