Did you know? If you lay an average man's circulatory system out in a straight line,
funniest joke you'll hear today about congestive heart failure
Assuming you are healthy, your heart when working normally, acts, sort of like a pump, or rather, two pumps. You see, your right heart expands to draw deoxygenated blood in from the body, and contracts to pump it out to the lungs to become oxygenated. And at the same time, your left heart draws in o...