Anterior mediastinum
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| Anterior mediastinum | |
|---|---|
 | |
| Mediastinum | |
 | |
| 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. | |
| Latin | mediastinum anterius |
| Gray's | subject #239 1092 |
| Dorlands/Elsevier | m_06/12518960 |
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.
Contents |
Boundaries
It is bounded:
- in front by the sternum
- laterally by the pleurae
- behind 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
See also
External links
- Norman/Georgetown thoraxlesson4 - "Anterior Mediastinum"
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
