Anterior mediastinum

Anterior mediastinum

Infobox Anatomy
Name = Anterior mediastinum
Latin = mediastinum anterius
GraySubject = 239
GrayPage = 1092


Caption = Mediastinum


Caption2 = A transverse section of the thorax, showing the contents of the middle and the posterior mediastinum. The pleural and pericardial cavities are exaggerated since normally there is no space between parietal and visceral pleura and between pericardium and heart.
System =
MeshName =
MeshNumber =
DorlandsPre = m_06
DorlandsSuf = 12518960
The anterior mediastinum exists only on the left side where the left pleura diverges from the mid-sternal line.

It is narrow, above, but widens out a little below.

Boundaries

It is bounded:
* "in front" by the sternum
* "laterally" by the pleurae
* "posteriorly" by the pericardium
* "anteriorly" by the left Transversus thoracis and the fifth, sixth, and seventh left costal cartilages

Contents

It contains:
* a quantity of loose areolar tissue
* some lymphatic vessels which ascend from the convex surface of the liver
* two or three anterior mediastinal lymph glands
* the small mediastinal branches of the internal mammary artery

ee also

* mediastinum
* thoracic plane

External links

* - "Anterior Mediastinum"


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