American Heritage® Dictionary of the English Language, Fourth Edition
- n. The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.
Century Dictionary and Cyclopedia
- n. In anatomy, a median septum or partition between two parts of an organ, or between two paired cavities of the body; especially, the membranous partition separating the right and left thoracic cavities, formed of the two inner pleural walls. Since in man these pleural folds do not meet, the term mediastinum is extended to the space between them.
- n. anatomy The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.
- n. the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus
- New Latin mediastīnum, from neuter of Medieval Latin mediastīnus, medial, from Latin, inferior servant, drudge (anatomical sense probably influenced by Latin intestīnum, intestine), from medius, middle; see medhyo- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“SATCHER: Well, the spores get into the lungs and they end up in the lymph nodes, in the chest, what we call the mediastinum (ph).”
“The adjacent sides of the two pleural sacs are central to the thorax, and form that space which is called mediastinum; the heart is located in this mediastinum, U E, Plate 1.”
“It is applied to the tunica vasculosa over the glandular substance of the testis, and, at its posterior border, is reflected into the interior of the gland, forming an incomplete vertical septum, called the mediastinum testis (corpus Highmori).”
“Schwannoma originating from the vagus nerve within the mediastinum is a rare, usually benign tumor.”
“Harvey Cushing, another star apprentice, even “cleaned out the anterior mediastinum,” the deep lymph nodes buried inside the chest.”
“One of the neatest evidences I see of God in Creation is the bison...with an incompletely divided mediastinum.”
“The mediastinum, all the stuff, and they go, oh, this isn't good, we can't treat for a heart attack.”
“With a scalpel in the other hand, carefully transect the root in the middle between lung and mediastinum. . .”
“Blood explodes into the mediastinum and pleural cavity.”
“He shows no inconsiderable knowledge of anatomy in his remarkable description of inflammation and abscess of the mediastinum in his own person, and its diagnosis from common pleuritis as well as from abscess and dropsy of the pericardium.”
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