| mediastinoscope | <instrument> An endoscope for inspection of mediastinum through a suprasternal incision. (05 Mar 2000) |
|---|---|
| mediastinoscopy | A procedure in which the doctor inserts a tube into the chest to view the organs in the mediastinum. The tube is inserted through an incision above the breastbone. (12 Dec 1998) |
| mediastinotomy | A procedure in which the doctor inserts a tube into the chest to view the organs in the mediastinum. The tube is inserted through an incision next to the breastbone. (12 Dec 1998) |
| mediastinum | <anatomy> The space in the thoracic cavity behind the sternum and in between the two pleural sacs (containing the lungs). (27 Sep 1997) |
| mediastinum anterius | Anterior mediastinum, the narrow region between the pericardium and the sternum containing the thymus or its remnants, some lymph nodes and vessels and branches of the internal thoracic artery. Synonym: mediastinum anterius. (05 Mar 2000) |
| mediastinum inferius | The region below a plane transecing the T4/5 intervertebral disc posteriorly and the sternal angle anteriorly, demarcating the inferior limit of the superior mediastinum. It is subdivided into three regions: middle, anterior, and posterior. Synonym: mediastinum inferius. (05 Mar 2000) |
| mediastinum medium | The central portion of the inferior mediastinum which contains the pericardium and its contents and the phrenic nerves and accompanying vessels. Synonym: mediastinum medium. (05 Mar 2000) |
| mediastinum posterius | Lies between the pericardium and the vertebral column, below the level of the T4/5 intervertebral disc. It contains the descending aorta, thoracic duct, oesophagus, azygos veins, and vagus nerves. Synonym: mediastinum posterius, postmediastinum. (05 Mar 2000) |
| mediastinum superius | That part lying above, i.e., above the pericardium; it contains the arch of the aorta and the vessels arising from it, the brachiocephalic veins, and upper portion of the superior vena cava, the trachea, the oesophagus, the thoracic duct, the thymus, and the phrenic, vagus, cardiac, and left recurrent laryngeal nerves. Synonym: mediastinum superius. (05 Mar 2000) |
| mediastinum testis | A mass of fibrous tissue continuous with the tunica albuginea, projecting into the testis from its posterior border. Synonym: corpus highmori, corpus highmorianum, Highmore's body, septum of testis. (05 Mar 2000) |
| mediate | Indirect, accomplished by the aid of an intervening medium. (18 Nov 1997) |
| mediate contagion | Indirect contagion effected through the medium of persons or objects that have been in contact with the sick. (05 Mar 2000) |
| mediate percussion | Percussion effected by the intervention of a finger or a plessimeter between the striking finger or plessor and the part percussed. (05 Mar 2000) |
| mediate transfusion | Transfusion into a patient of blood previously obtained from a donor and stored in a suitable container. Synonym: mediate transfusion. (05 Mar 2000) |
| mediation | The action of an intermediary substance (mediator). (05 Mar 2000) |