Heart Stopping Finish! U.S. U 15 Boys Defeat Panama In Concacaf Semifinals!

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· symptoms of heart disease in the blood vessels coronary artery disease is a common heart condition that affects the major … It is made up of multiple layers of … · your heart is in the center of your chest, near your lungs. · oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava. · your heartbeat is the contraction of your heart to pump blood to your lungs and the rest of your body. Your hearts electrical … It has four hollow chambers surrounded by muscle and other … · the heart is an organ about the size of your fist that pumps blood through your body.