Final answer:
The arteries originating from the lateral walls of the aorta are the renal arteries, which supply blood to the kidneys.
Step-by-step explanation:
The arteries originating from the lateral walls of the aorta that are concerned with the question are notably the renal arteries. These arteries branch out from the abdominal aorta and provide a vital blood supply to the kidneys. Each renal artery enters the kidney where they further divide into several segmental arteries ensuring adequate blood supply. Unlike the renal arteries, the mesenteric arteries (superior and inferior), hepatic, and splenic arteries emerge from the anterior side of the aorta and are therefore not the lateral arteries referred to.