Middle mediastinum

Middle 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 medium
Gray's	subject #239 1092

The middle mediastinum is the broadest part of the interpleural space. It is made up of the pericardial sac and its contents.

Contents

It contains:

• the heart enclosed in the pericardium
• the ascending aorta
• the lower half of the superior vena cava with the azygos vein opening into it
• the bifurcation of the trachea and the two bronchi
• the pulmonary artery dividing into its two branches
• the right and left pulmonary veins
• the phrenic nerves
• some bronchial lymphatic glands
• pericardiocophrenic vessels

See also

• mediastinum
• thoracic plane

External links

• SUNY Labs 21:02-0100 - "Mediastinum: The Middle Mediastinum"
• 2013659195 at GPnotebook

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

This anatomy article is a stub. You can help Wikipedia by expanding it.v · Categories: Anatomy stubs Thoracic cavity Wikimedia Foundation. 2010. Игры ⚽ Нужно решить контрольную? Posterior mediastinum Anterior mediastinum Look at other dictionaries: Mediastinum — Mediastinum. The division between superior and inferior is at the sternal angle …   Wikipedia mediastinum medium — [TA] middle mediastinum: the division of the mediastinum containing the heart enclosed in its pericardium, the ascending aorta, the superior vena cava, the bifurcation of the trachea into bronchi, the proximal portions of the pulmonary arteries… …   Medical dictionary mediastinum — [mē΄dē as tī′nəm] n. pl. mediastina [mē΄dē as tī′nə] [ModL < ML mediastinus, in the middle (form infl. by L mediastinus, servant, medical assistant) < L medius, middle: see MID1] 1. a membranous partition between two cavities of the body,… …   English World 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 — Mediastine Me di*as tine, Mediastinum Me di*as*ti num, n. [NL. mediastinum, fr. L. medius middle; cf. mediastinus helper, a menial servant, LL. mediastinus equiv. to medius: cf F. m[ e]diastin.] (Anat.) A partition; a septum; specifically, the… …   The Collaborative International Dictionary of English 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 mediastinum — /midiəˈstaɪnəm/ (say meedeeuh stuynuhm) noun (plural mediastina /midiəˈstaɪnə/ (say meedeeuh stuynuh)) 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… …   mediastinum — n. (pl. mediastina) Anat. a membranous middle septum, esp. between the lungs. Derivatives: mediastinal adj. Etymology: mod.L f. med.L mediastinus medial, after L mediastinus drudge f. medius middle …   Useful english dictionary mediastinum — [ˌmi:dɪə stʌɪnəm] noun (plural mediastina nə) Anatomy a membranous partition, especially that between the lungs. Derivatives mediastinal adjective Origin ME: neut. of med. L. mediastinus medial , based on L. medius middle …   English new terms dictionary 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”