- a median septum or partition between two parts of an organ, or paired cavities of the body.
- the partition separating the right and left thoracic cavities, formed of the two inner pleural walls, and, in humans, comprising all the viscera of the thorax except the lungs.
Origin of mediastinum
Examples from the Web for mediastinum
Historical Examples of mediastinum
It has been known to descend along the planes of connective tissue into the mediastinum or into the lungs.
The subcutaneous tissue, pericardium, mediastinum, and mesenterium contained considerable amounts of fat.Plague
Thomas Wright Jackson
Several lymphatic glands in the anterior part of the mediastinum contained black fluid.An Investigation into the Nature of Black Phthisis
This is a point of great practical importance in determining the extension of inflammation into the mediastinum.
- a membrane between two parts of an organ or cavity such as the pleural tissue between the two lungs
- the part of the thoracic cavity that lies between the lungs, containing the heart, trachea, etc
Word Origin for mediastinum
- A septum between two parts of an organ or a cavity.
- The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.interpleural space mediastinal space