The upper chambers are called the atria respectively right and left atrium.The lower chambers in your heart are called the left ventricle and the right ventricle. Answer: The heart is made up of four interior chambers. There are two upper and two lower chambers which create the muscle.
There's a chance it was China. Today, the U.S. has an open-trade policy with China, which means goods are traded freely between the two countries, but it wasn't always this way. On February 21, 1972, President Richard M. Nixon arrived in China for an official trip. He was the first U.S. president to visit the People's Republic of China since it was established in 1949. This was an important event because the U.S. was seeking to improve relations with a Communist country during the Cold War.
Ultimately, his presidency ended in disgrace, with Nixon 's 1974 resignation in the midst of the Watergate scandal. In his first term as president, Richard Nixon promised the American public that he would reduce U.S. troop levels in Vietnam.He pursued a plan he called Vietnamization, whereby the U.S. would gradually withdraw from the war, leaving the South Vietnamese army to shoulder the bulk of the fighting.n his first term as president, Richard Nixon promised the American public that he would reduce U.S. troop levels in Vietnam. He pursued a plan he called Vietnamization, whereby the U.S. would gradually withdraw from the war, leaving the South Vietnamese army to shoulder the bulk of the fighting.