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.
As of 7 May 2012, Vladimir Putin (Ð²Ð»Ð°Ð´Ð¸Ð¼Ð¸Ñ Ð¿ÑÑÐ¸Ð½) is the president of Russia, with Dmitry Medvedyev (Ð´Ð¼Ð¸ÑÑÐ¸Ð¹ Ð¼ÐµÐ´Ð²ÐµÐ´ÐµÐ²) as Prime Minister. Prior to his presidency (as other answers as stating), the president was Medvedyev and the prime minister was Putin.