drain into the Azygos vein.
Arteries drain (pump blood) into veins. Veins drain into your lungs and heart to be re-oxygenated. (This is not true for veins and arteries to and from your lungs.)
renal veins
the ulnar and the radial veins
The radial and ulnar veins.
hepatic
drain blood from the interlobular veins, and empty into theinterlobar veins
superior and inferior vena cava
Those are the veins that drain blood from the lungs, and empty into the left atria.
intercostal muscle
Pack it with ice. The cold will repel the blood.
You're confused. The heart pumps. The veins drain.
Intercostal Drainage is a medical procedure where a hollow tube is inserted between the ribs, into the chest i.e. in pleura ( covering of lungs ) to drain the unwanted collection in the chest - air, pus, blood or fluid.