MEDIASTINUM
, INTRODUCTION
Definition
Middle space between thoracic cavity
between right and left pleural sacs
In Latin, mediastinum = middle septum
Contains major vessels and viscera of
thoracic region.
2
, INTRODUCTION
Boundaries of Mediastinum
Middle space of thoracic cavity
Extends from thoracic inlet –diaphragm
and bounded on either side by
mediastinal pleurae
Anterior: Sternum
Posterior: Vertebral column
Superior: Thoracic inlet
Inferior: Diaphragm
On each side (lateral): Mediastinal
pleurae
3
, INTRODUCTION
Definition
Middle space between thoracic cavity
between right and left pleural sacs
In Latin, mediastinum = middle septum
Contains major vessels and viscera of
thoracic region.
2
, INTRODUCTION
Boundaries of Mediastinum
Middle space of thoracic cavity
Extends from thoracic inlet –diaphragm
and bounded on either side by
mediastinal pleurae
Anterior: Sternum
Posterior: Vertebral column
Superior: Thoracic inlet
Inferior: Diaphragm
On each side (lateral): Mediastinal
pleurae
3
