"Gee, our veins have valves as well, so they also make audible gurgling noises?!!! Learn some REAL anatomy and physiology!!!"
Nice try. Have some humility, the heart beat is heard through the veins and I am sure the veins do make a sound when pressure is released. Not only that but the Liver ducts are typically larger than the veins and there is more of an exchange of fluid than through the veins. Once again your argument proves nothing. Getting emotional and exclamatory about valves making noise is a poor argument.