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.
Putin is the current President of the Russian Federation, holding the office since 7 May 2012. He was Prime Minister from 1999 to 2000, President from 2000 to 2008, and again Prime Minister from 2008 to 2012. During his second term as Prime Minister, he was the Chairman of the ruling United Russia Party.