1
trachea
2
esophagus
3
Thymus
4
pericardium
5
right lung
- cranial lobe (1)
- middle lobe (2)
- caudal lobe (3)
- accessory lobe (4)
6
mediastinum (=space)
central compartment of thoracic cavity containing the heart, esophagus, trachea, phrenic and cardiac nerves, thoracic duct, thymus, and lymph nodes.
7
left lung
- cranial lobe (1)
- caudal lobe (2)
8
vagus nerve
9
brachiocephalic artery
10
diaphragm
11
Azygos vein
12
Interventricular sulci
13
brachial nerve plexus
network of nerves (brachial nerve and brachial artery)
14
Ventricles
- right (1)
- left (2)
15
Auricles
- right (1)
- left (2)
16
Caudal Vena Cava
17
Cranial Vena Cava
18
Pulmonary trunk
19
Pulmonary arteries
20
aortic arch (1)
thoracic aorta (2)
21
subclavian veins
- right (1)
- left (2)
22
common carotid arteries
23
subclavian arteries
- right (1)
- left (2)
24
atrioventricular sulcus
