Anatomy: The Mediastinum Flashcards
1
Q
What is the mediastinum and what are its divisions?
A
The mediastinum is the collection of structures which are found in the centre of the thorax. It is further subdivided for descriptive purposes. The divisions are: superior anterior middle posterior
2
Q
What is visible in a coronal view of the mediastinum?
A
The mediastinum has the lungs and pleura lateral to it, and the diaphragm can be found inferiorly.
3
Q
At which vertebral level does the trans-thoracic plane lie?
A
T4/T5
It can be identified externally by the sternal angle (angle of Louis)
4
Q
What does the trans-thoracic plane separate?
A
The superior and inferior mediastinum
5
Q
Which structures are found in both the superior and inferior mediastinum?
A
Thymus
Oesophagus
6
Q
Which structures are found in the superior mediastinum?
A
Left brachiocephalic vein
Trachea
7
Q
Which structures are found in the inferior mediastinum?
A
Heart
8
Q
What are the major structures of the superior mediastinum arranged from anterior to posterior?
A
Thymus Large veins Large arteries Trachea (the trachea bifurcates at the level of the sternal angle) Oesophagus & thoracic duct
