Superior mediastinum

Superior mediastinum

Infobox Anatomy
Name = Superior mediastinum
Latin = mediastinum superius
GraySubject = 239
GrayPage = 1090


Caption = Mediastinum


Caption2 = Transverse section through the upper margin of the second thoracic vertebra.
System =
MeshName =
MeshNumber =
DorlandsPre = m_06
DorlandsSuf = 12518993
The superior mediastinum is that portion of the interpleural space which lies between the manubrium sterni in front, and the upper thoracic vertebrae behind.

Boundaries

It is bounded:
* "below" by a slightly oblique plane passing backward from the junction of the manubrium and body of the sternum (sternal angle) to the lower part of the body of the fourth thoracic vertebra (see also thoracic plane)
* "laterally" by the pleurae

Contents

* muscles
** origins of the Sternohyoidei and Sternothyreoidei
** lower ends of the Longi colli
* arteries
** aortic arch
** brachiocephalic artery
** thoracic portions of the left common carotid and the left subclavian
* veins
** innominate veins and
** upper half of the superior vena cava
** left highest intercostal vein
* nerves
** vagus nerve
** cardiac nerve
** superficial and deep cardiac plexuses
** phrenic nerve
** left recurrent nerve
* trachea
* esophagus
* thoracic duct
* remains of the thymus
* some lymph glands
* anterior longitudinal ligament

ee also

* mediastinum

External links

* - "Superior Mediastinum"
*


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