The azygos system of veins is found in the posterior thorax close to the vertebrae. We have an azygos vein, a hemiazygos vein, and probably an accessory hemiazygos vein. Where do they come from, where do they go, and what structures do they drain blood from?
Music by Jahzzar
Album: HiFi City Tales
Song: Bodies
https://soundcloud.com/jahzzar
