The left ventricle is really the last chamber of the heart that we're going through. You're probably thinking, "Wow, the walls in here are really thick."
The reason is that this left ventricle gives the big push needed that sends us back out around the entire body. That's right, out to the right foot and the left ear lobe (and everywhere in between too!).
This happens at the same time as the right ventricle is contracting to send a new group of blood out to visit the lungs.
