Mediastinum
3
Plate228
Mediastinum:LeftLateralView
Anterior scalene muscle and phrenic nerve
Brachial plexus
Left subclavian vein and artery
Subclavius muscle
Clavicle
Left brachiocephalic vein
Left internal thoracic artery
Thymus (seen through
mediastinal pleura)
Ligamentum arteriosum
Left pulmonary artery
Left phrenic nerve and
pericardiacophrenic
artery and vein*
Mediastinal part of
parietal pleura
(
cut edge
)
Fibrous pericardium
*Nerve and vessels commonly run independently.
Left pulmonary
veins
Pulmonary ligament
(
cut
)
Fat pad
Esophagus and
esophageal plexus
(covered by mediastinal
part of parietal pleura)
Diaphragm (covered
by diaphragmatic part
of parietal pleura)
Costodiaphragmatic
recess of pleural cavity
Costal part of
parietal pleura (
cut edge
)
1st rib
Cervical (cupula, or dome, of) parietal pleura and
suprapleural membrane (Sibson’s fascia)
Esophagus
Thoracic duct
Left vagus nerve (X)
Left superior
intercostal vein
Arch of aorta
Left recurrent
laryngeal nerve
Accessory
hemi-azygos vein
Bronchopulmonary
(hilar) lymph nodes
Posterior intercostal
vein and artery and
intercostal nerve
Innermost
intercostal
muscle
Internal intercostal
membrane deep to
external intercostal
muscle
Gray and white
rami communicantes
Costal pleura
(
cut edge
)
Sympathetic trunk
Greater splanchnic
nerve
Thoracic
(descending) aorta
Left main bronchus
and bronchial artery
