What is the azygos vein?

What is the azygos vein?

The azygos vein is a unilateral vessel that ascends in the thorax to the right of the vertebral column, carrying deoxygenated blood from the posterior chest and abdominal walls. It forms part of the azygos venous system.

Why is it called azygos vein?

The azygos vein transports deoxygenated blood from the posterior walls of the thorax and abdomen into the superior vena cava vein. The vein is so named because it has no symmetrically equivalent vein on the left side of the body.

What is the origin and termination of azygos vein What is lobe of azygos vein?

Origin. The azygos vein is formed by the union of the ascending lumbar veins and right subcostal veins at around the T12-L2 vertebral level.

What is the continuation of which vein is the azygos vein?

inferior vena cava
The azygos vein joins the superior vena cava (SVC) at the normal location in the right paratracheal space. Other arrangements in the duplicated inferior vena cava drainage can be found, such as: double IVC with retroaortic right renal vein and hemiazygos continuation of the IVC.

What does vena azygos mean?

Here are all the possible meanings and translations of the word VENA AZYGOS. one of a system of veins that drain the thoracic and abdominal walls; arises as a continuation of the right ascending lumbar vein and terminates in the superior vena cava

What does hemiazygos vein mean?

hemi·​a·​zy·​gos vein | \\ -(ˈ)ā-ˈzī-gəs- , -ˈaz-ə-gəs- \\. variants: also hemiazygous vein. : a vein that receives blood from the lower half of the left thoracic wall and the left abdominal wall, ascends along the left side of the spinal column, and empties into the azygos vein near the middle of the thorax.

What does accessory hemiazygos vein mean?

The accessory hemiazygos vein, also called the superior hemiazygous vein is a vein on the left side of the vertebral column that generally drains the fourth through eighth intercostal spaces on the left side of the body. The accessory hemiazygos vein varies inversely in size with the left superior intercostal vein .