A. Aorta-Oxygenated blood pumped by the heart goes through the aorta. B. Renal artery-From the abdominal aorta the blood goes to the renal arteries. C. Segmental arteries-As each renal artery approaches a kidney it divides into five segmental arteries that enter the renal hilus.
Photo Credit: Library of Congress. President John Tyler had the most children of any president â 15 children with two wives. He also still has two living grandchildren! Born in 1790, Tyler was the 10th President of the United States, serving from 1841-1845. He took office after the sudden death of President William Henry Harrison and was nicknamed âHis Accidency.â.
He was the youngest president ever elected to the presidency at the age of 43. However, Theodore Roosevelt was the youngest man to serve as president when he took over after William McKinley's assassination. He was 42. Here are the ages of the ten youngest presidents: 1  Theodore Roosevelt - 42 years, 322 days. 2  John F. Kennedy - 43 years, 426 days. 3  Bill Clinton - 46 years, 154 days.