The mediastinum Ithe contents of the mediastinum

Superior mediastinum Great vessels Trachea Oesophagus Thymus, etc.

Anterior mediastinum

Thymus

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The subdivisions of the mediastinum and their principal contents

Middle mediastinum

Heart and roots of great vessels Pericardium

Posterior mediastinum Oesophagus

Descending thoracic aorta Thoracic duct

Azygos and hemiazygos veins Sympathetic trunk, etc.

Right vagus

Azygos vein

Diaphragm

Fig.3.2

The course and principal relations of the oesophagus. Note that it passes through the right crus of the diaphragm

Diaphragm

Right crus

Left crus

Oesophagus Trachea Recurrent laryngeal nerve

Thoracic duct Left vagus

Anterior pulmonary plexus

Oesophageal plexus

Anterior vagal trunk

Oesophageal opening (T10)

Aortic opening (T12)

Fig.3.2

The course and principal relations of the oesophagus. Note that it passes through the right crus of the diaphragm

Fig.3.3

The thoracic duct and its areas of drainage. The right lymph duct is also shown

Jugular lymph trunks

Right lymph duct

Thoracic duct

Subclavian lymph trunk

Bronchomediastinal lymph trunk

Superior vena cava

From chest wall (right)

From chest wall (left) Diaphragm Cisterna chyli

From kidneys and abdominal wall

From abdominal viscera

From lower limbs

Fig.3.3

The thoracic duct and its areas of drainage. The right lymph duct is also shown

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