The conversation between human and AI assistant.
Who invented and designed the human heart?
How does the human heart work?
The human heart has four chambers: the right atrium, right ventricle, left atrium, and left ventricle. Blood enters the right atrium and is then pumped into the right ventricle. From there, it is pumped to the lungs to receive oxygen. Oxygen-rich blood then returns to the left atrium and is pumped into the left ventricle. From there, it is pumped to the rest of the body.