Hum D2t

1

sternum

2

pericardial cavity

3

anterior cardinal vein

4

parietal pleura

5

visceral pleura

6

lung

7

aortic arch

8

oesophagus

9

sypathetic chain

10

azygos vein draining into the SVC

11

trachea

12

superior vena cava

13

internal thoracic artery