The splenic artery is a major blood vessel that supplies oxygenated blood to the spleen, an organ involved in filtering blood and supporting the immune system. It branches off from the celiac trunk, which is a large artery that provides blood to several abdominal organs. As it travels, the splenic artery runs along the upper border of the pancreas and gives off smaller branches that supply the stomach and pancreas as well. Proper blood flow through the splenic artery is essential for the health and function of the spleen and surrounding organs.