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"


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • anterior mediastinum — The area in the front part of the chest between the lungs. Also called prevascular space …   English dictionary of cancer terms

  • Mediastinum — Mediastinum. The division between superior and inferior is at the sternal angle …   Wikipedia

  • mediastinum anterius — [TA] anterior mediastinum: the division of the mediastinum bounded posteriorly by the pericardium, anteriorly by the sternum, and on each side by the pleura. It contains loose areolar tissue and lymphatic vessels. Called also anterior mediastinal …   Medical dictionary

  • Mediastinum — The area between the lungs. The organs in this area include the heart and its large veins and arteries, the trachea, the esophagus, the bronchi, and lymph nodes. * * * 1. A septum between two parts of an organ or a cavity. 2. [TA] The median… …   Medical dictionary

  • mediastinum — mediastinal, adj. /mee dee a stuy neuhm/, n., pl. mediastina / a stuy neuh/. Anat. 1. a median septum or partition between two parts of an organ, or paired cavities of the body. 2. the partition separating the right and left thoracic cavities,… …   Universalium

  • mediastinum — n. the space in the thorax (chest cavity) between the two pleural sacs. The mediastinum contains the heart, aorta, trachea, oesophagus, and thymus gland and is divided into anterior, middle, posterior, and superior regions …   The new mediacal dictionary

  • anterior mediastinal lymph nodes — lymph nodes along the great vessels of the superior mediastinum and on the anterior part of the diaphragm, receiving lymph from adjacent structures …   Medical dictionary

  • Inferior mediastinum — can refer to: * Anterior mediastinum * Middle mediastinum * Posterior mediastinum …   Wikipedia

  • mediastinal cavity anterior — mediastinum anterius …   Medical dictionary

  • Middle mediastinum — Mediastinum A transverse section of the thorax, showing the contents o …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”