- Origin: Formed by the union of the Right Ascending Lumbar Vein and Right Subcostal Vein
- Travels through the Aortic Opening under shelter of Right Crus
- Lateral to the Thoracic Duct
- Passes upwards lying on the sides of the Vertebral bodies on a plane posterior to that of the Oesophagus
- Termination: Superior Vena Cava
- At level of T4
- Azygos Vein arches forwards over the Hilum of the Right lung
- Receives blood from:
- Lower 8 Posterior Intercostal Veins of the Right Side
- Superior intercostal vein
- Bronchial veins from the Right Lung
- Pericardial Veins
- Veins from the Middle third of the Oesophagus
- Two Hemiazygos Veinsusually join it at the levels of T7 and T8




Source: NETTER ATLAS 8th