Thoracic Wall: Azygos System Flashcards
The anterior aspect of the thoracic wall is drained by what vein?
Internal Thoracic Vein
What is the relationship of the internal thoracic vein as it relates to the artery of the same name?
The vein will lie more medial
What will drain the posterior aspect of the thoracic wall?
The Azygos System
On the right side, that will the 1st posterior intercostal vein drain into?
Brachiocephalic Vein
On the right side, the 2nd and 3rd intercostal veins will join to form what?
The right superior intercostal vein
What is the highest tributary of the azygos vein?
The right superior intercostal vein
What veins will drain directly into the azygos vein?
1) 4th-11th Posterior Intercostal Veins
2) Subcostal Vein
Which side is the azygos vein located?
Right
On the left side, the 1st posterior intercostal vein drains into what?
The left brachiocephalic vein
What will join together to form the left superior intercostal vein?
The 2nd and 3rd posterior intercostal veins
The 8th-11th posterior intercostal veins will join together to form what?
Accessory Hemiazygos Vein
The azygos and hemiazygos veins are direct continuation of what veins?
The right and left ascending lumbar veins
What will join together to form the hemiazygos vein?
The 9th-11th posterior intercostal veins
T/F: The left side of the azygos system is extremely stable.
False: There is a large amount of variation in the left side (hemiazygos side) of the venous system of the thoracic wall
What does Azygos mean?
It is Greek for unpaired
