The circulatory system comprises of the heart, the lungs and the  blood vessels. The main objective of the circulatory system is  transporting oxygenated (rich saturation of oxygen) blood around  the body. The de-oxygenated blood enters through the vena cava and  into the right atrium of the heart.
Vladimir Putin's Height. 5ft 6.5in (169 cm) The President of Russia. A newspaper once reported that there was criteria for the height of people in official photos with him, and that they shouldn't be taller. Shockingly, the newspaper said with a straight face Vladimir is believed to be between 5ft 2 and 5ft 5.
Standing 5,642 meters (18,510 feet) tall, Mount Elbrus is the tallest mountain in Russia and also the tallest mountain in all of Europe. The Elbrus mountain is an inactive volcano and is also one of the Seven Summits of the world (the tallest mountains on each of the world's seven continents).