Thorax Pleural Pathways

1. Parietal Pleura Pathway 
1. Blood Supply 
1. Aorta  aortic arch 
1. Descending aorta  posterior intercostal  costal pleura 
2. Left subclavian or brachiocephalic to right subclavian  internal thoracic  anterior costal pleura
1. Mediastinal pleura 
2. Pericardiophrenic  diaphragmatic pleura
2. Blood Drainage 
1. Diaphragmatic pleura  pericardiophrenic  brachiocephalic  SVC
2. Mediastinal pleura  internal thoracic  brachiocephalic  SVC 
3. Costal pleura  internal thoracic  brachiocephalic  SVC
4. Costal pleura  intercostal vein  
1. Right  azygous  SVC 
2. Left hemiazygos  highest intercostal  brachiocephalic  SVC 
3. Left hemiazygos  azygous  SVC 
3. Nerves 
1. Afferent 
1. Pain 
1. Costal pleura  intercostal nerve  dorsal root  anterolateral 
2. Diaphragmatic and mediastinal pleura  phrenic  cervical plexus  C345  anterolateral paths