Posterior mediastinal cavity

mediastinum /me·di·as·ti·num/ (me″de-ah-sti´num) pl. mediasti´na [L.]

1. a median septum or partition.

2. the mass of tissues and organs separating the two pleural sacs, between the sternum in front and the vertebral column behind, containing the heart and its large vessels, trachea, esophagus, thymus, lymph nodes, and other structures and tissues; it is divided into superior and inferior regions, the latter subdivided into anterior, middle, and posterior parts.

Subdivisions of the mediastinum.

mediastinum tes´tis the partial septum of the testis, formed near its posterior border by a continuation of the tunica albuginea.

me·di·as·ti·num (m

-st

n. pl. me·di·as·ti·na (-n

)

1. A septum between two parts of an organ or a cavity.

2. The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs. Also called interpleural space, mediastinal space.

medi·as·tinal (-n

l) adj.

Mediastinum

The area between the lungs, bounded by the spine, breastbone, and diaphragm.

Mentioned in: Lung Biopsy, Pneumothorax

mediastinum

[mē′dē·əstī′nəm] pl. mediastina

Etymology: L, mediastinus, midway

a part of the thoracic cavity in the middle of the thorax, between the pleural sacs containing the two lungs. It extends from the sternum to the vertebral column and contains all the thoracic viscera except the lungs. It is enclosed in a thick extension of the thoracic subserous fascia and is divided into the anterior mediastinum, middle mediastinum, posterior mediastinum, and superior mediastinum. mediastinal, adj.

mediastinum [me″de-ah-sti´num] (L.)

1. a median septum or partition.

2. the mass of tissues and organs separating the sternum in front and the vertebral column behind, containing the heart and its large vessels, trachea, esophagus, thymus, lymph nodes, and other structures and tissues. It is divided into anterior, middle, posterior, and superior regions.

mediastinum tes´tis a partial septum of the testis formed near its posterior border by a continuation of the tunica albuginea.

mediastinum

(mē´dēas´t

nī´n

m),
n a portion of the thoracic cavity in the middle of the thorax between the pleural sacs containing the two lungs. It extends from the sternum to the vertebral column and contains all the thoracic viscera except the lungs.

mediastinum

pl. mediastina [L.]

1. a median septum or partition.

2. the mass of tissues and organs separating the two lungs, between the sternum ventrally and the vertebral column dorsally, containing the heart and its large vessels, trachea, esophagus, thymus, lymph nodes, and other structures and tissues. In the horse, the caudal part of the mediastinum is usually fenestrated and the two pleural cavities communicate with each other through it.

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anterior mediastinum chylomediastinum danger space epidural space hemomediastinum intercostal space interpleural space interproximal space intervillous space mediastina mediastinal mediastinal cyst mediastinal emphysema mediastinal space mediastinitis mediastinography mediastinoscopy mediastinotomy mediastinum testis	posterior ethmoidal artery posterior ethmoidal nerve posterior facial vein posterior focal point posterior fontanel posterior fossa posterior funiculus posterior horn posterior inferior cerebellar artery syndrome posterior intercostal vein posterior interosseous nerve posterior keratoconus posterior kidney posterior labial nerve posterior labial vein posterior lacrimal crest posterior lateral nasal artery posterior ligament posterior limiting ring posterior liver posterior lobe of hypophysis posterior longitudinal ligament posterior median fissure posterior median line posterior median sulcus Posterior mediastinal cavity posterior mediastinal node posterior mediastinum posterior nares posterior nasal spine posterior neuropore posterior occlusion posterior palatal seal area posterior palatine foramen posterior parietal artery posterior perforated substance posterior pituitary gland posterior pyramid of medulla posterior ramus posterior rhinoscopy posterior rhizotomy posterior root posterior sagittal anorectoplasty posterior scalene muscle posterior scleritis posterior scrotal nerve posterior scrotal vein posterior segment of the eye posterior septal artery of nose posterior spinal arteries posterior spinocerebellar tract	posterior limiting membrane posterior limiting membrane posterior limiting membrane posterior limiting ring Posterior Lip Augmentation Device posterior liver Posterior lobe Posterior lobe Posterior lobe posterior lobe of hypophysis Posterior longitudinal ligament Posterior longitudinal ligament Posterior Longitudinal Ligament Ossification Posterior Lower Facial Height Posterior Lumbar Epidural Fat Posterior Lumbar Epidural Space Posterior Lumbar Fusion Posterior Lumbar Interbody Fusion Posterior Malalignment Type Ventricular Septal Defect Posterior Mean Estimator posterior median fissure posterior median fissure posterior median fissure posterior median fissure posterior median line Posterior median septum posterior median sulcus posterior median sulcus posterior median sulcus Posterior mediastinal Posterior mediastinal cavity posterior mediastinal node Posterior mediastinum Posterior medullary velum posterior meningeal artery Posterior Middle Temporal Gyrus Posterior Mitral Leaflet Posterior Mitral Leaflet Motion Posterior Mitral Valve Leaflet posterior nares posterior naris posterior nasal spine posterior nasal spine posterior nasal spine posterior nasal spine Posterior nerve roots Posterior nerve roots posterior neuropore Posterior Nucleus/Zona Incerta Region Posterior Occipital Sharp Transients of Sleep posterior occlusion posterior odds posterior odds posterior odds posterior palatal bar posterior palatal bar posterior palatal bar posterior palatal bar posterior palatal bar posterior palatal major connector posterior palatal major connector

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