The four valves of the heart prevent blood from flowing in the wrong direction, and open or close each time the heart beats. Learn more about them, here.

Viral heart diagram was labelled to suggest the girls he had feeling for . The student was asked to a answer a question that read, "Draw the heart diagram. Label and write functions of the heart." ...

Perhaps draw a diagram, that may or may not resemble a heart. A student went a step ahead and actually drew a heart, labelled each chamber after a girl he was in love with, is in love or has a ...

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

The chambers of the heart operate as a ‘double-pump’ system for the body’s circulation. In coordination with valves, the chambers work to keep blood flowing in the proper sequence.