The two sides of the heart work in opposition to each other. The right side of the heart takes in deoxygenated blood from the body and feeds them to the veins and lungs; the left side carries the oxygen and nutrient-rich blood from the...

The two sides of the heart work in opposition to each other. The right side of the heart takes in deoxygenated blood from the body and feeds them to the veins and lungs; the left side carries the oxygen and nutrient rich blood from...