What Is the Superior Mediastinum?

The upper mediastinum is the superficial structure behind the sternum: it has the thymus and three major veins.

Superior mediastinum

Right!

The upper mediastinum is the superficial structure behind the sternum: it has the thymus and three major veins.

Chinese name

Superior mediastinum

Remark

Superstructure behind the sternum

Structure

Thymus and three major veins

surroundings

Appear independently

Structure diagram (2 photos)

The thymus is the most superficial and appears independently. The thymus and the three major veins are only associated with blood vessels from both sides and blood vessels in the thorax. The three major veins include the superior vena cava and the left and right innominate veins, of which the left innominate vein can protrude to the neck, which is a dangerous area that cannot be ignored; the right innominate vein and the right internal jugular vein are almost on the same vertical line as the superior vena cava; There are three groups of branches: the internal jugular and subclavian veins, lymphatic ducts, and the accompanying veins of the subclavian artery.