The Aorta in the abdomen gives off 2 branches (the Coeliac Artery & the Superior Mesenteric Artery) which supply the stomach, liver, pancreas, spleen, and most of the intestines. Below these 2 branches, there are 2 further branches each going to one kidney. Further below, there is the final branch (the Inferior Mesenteric Artery) which supplies the rest of the lower intestines.
There are also multiple small branches along the entire length of the Aorta which supply the spinal cord (which can be thought of as the extension of the brain) with blood. In the abdomen, these branches are called the Lumbar arteries.
