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 leader of the highest circle, and that is seen as natural as father is the leader of family. Also, Putin is not a drunk and has done great job in putting his supporters into power positions around the society. As long as Putin leads the United Russia party, Putin leads Russia. Nobody wants to challenge him, as challenging would be directly jeopardize your and your family's happiness.