What is the course of the azygos vein:
a. From the abdomen towards the thorax in passes together with the inferior vena cava through the diaphragmatic hiatus
b. From the abdomen towards the thorax in passes posterior to the right crus of the diaphragm
c. Inside the thorax its located in the posterior mediastinum, on the left side of the vertebral column
d. Inside the thorax its located in the medial mediastinum
e. At the level of the fourth thoracic vertebra it arches and drains inside the superior vena cava
The correct course of the azygos vein is:
b. From the abdomen towards the thorax, it passes posterior to the right crus of the diaphragm.**
e. At the level of the fourth thoracic vertebra, it arches and drains inside the superior vena cava.**