The heart is an organ that serves to pump blood all the time, there was no stopping the blood flow circulation throughout so that the body.The human heart is divided into four channels are on the lower left and lower right, upper left, right. The blood that is in the blood of the two channels, the left is coming from the lungs is called the blood the blood in two parts, right, is the blood that is coming from your body is oxygen used to blood. Called the black blood. Heart wall thickness, and the lower box will have a strong heart, and is larger than the channel on the top and bottom channels between the hearts will be open only to heart, blood flowing down from the channel on the bottom. But the flow.Cardiac muscle is composed of cells, while the muscle contraction will squeeze the blood in the heart, the bottom by blood to organs throughout the body, also spread, but the blood will flow to the lungs, the heart enlarges during the taste and sucked the blood came through the channel on the lower box to. The two left to get blood from the lungs, while the right channel getting blood from two cells throughout the body and pump to cycle continuously by the blood from the heart to the lungs, at the lower right of the box to release carbon dioxide and pick up oxygen from the air in the blood flow becomes potklap back into the heart of the left to be pumped throughout the body, the next injection.
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