The blood vessel that provides nutrients to the liver from the stomach and intestine as well as drain the spleen is the?

The blood vessel that provides nutrients to the liver from the stomach and intestine, as well as draining the spleen, is the hepatic portal vein. This vessel collects blood rich in nutrients from the gastrointestinal tract and spleen, directing it to the liver for processing. The liver then metabolizes these nutrients before the blood is sent to the rest of the body.