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.
That lack of size is evident at times on the ice, but itâs no more evident than when heâs standing next to the NHLâs tallest player, teammate Zdeno Chara. The Boston captain is literally (at least) a foot taller than Krug, as the Slovakian blueliner checks in at 6-foot-9. Krug poked a little fun at his own height when he tweeted a pretty humorous picture of himself and Chara standing on the bench during the National Anthem at a recent game. See the photo below.