Question: what are the main veins in the body?
Answer: internal iliac artery. Branch of the common iliac artery flowing to the pelvis, the genital organs and the inner thigh.
superior vena cava. ... 
great saphenous vein. ... 
femoral vein. ... 
basilic vein. ... 
cephalic vein. ... 
axillary vein. ... 
subclavian vein.