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 at 5,204 meters (17,073 feet), Dykh-Tau is the second tallest mountain in Russia. Dykh-Tau is located in the Caucasus Mountains and the Kabardino-Balkaria, a federal subject of Russia. The mountain is near the border with Georgia, and the Bezingi Wall of the Shkhara mountain in Georgia can be seen from it.