· 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 hearts electrical … · the heart is an organ about the size of your fist that pumps blood through your body. · your heartbeat is the contraction of your heart to pump blood to your lungs and the rest of your body. It is made up of multiple layers of … · symptoms of heart disease in the blood vessels coronary artery disease is a common heart condition that affects the major … It has four hollow chambers surrounded by muscle and other …
Heart Attack Survivor James Roday His Story Will Save Your Life
· your heart is in the center of your chest, near your lungs. · oxygen-poor blood from the body enters your heart through two large...
