Final answer:
The statement is true; the human heart contains four one-way valves which are the mitral, tricuspid, aortic, and pulmonary valves. These valves ensure unidirectional blood flow through the heart to maintain cardiovascular system efficiency.
Step-by-step explanation:
The human heart indeed contains four one-way valves to prevent the backward movement of blood, making the statement true. These valves are strategically located to ensure that blood flows in a singular direction, from the atria to the ventricles and then from the ventricles to the arteries. The four heart valves are the mitral valve, the tricuspid valve, the aortic valve, and the pulmonary valve. The mitral and tricuspid valves are also known as atrioventricular valves, while the aortic and pulmonary valves are referred to as semilunar valves. Each valve is constructed to open and allow the flow of blood in one direction and then close to prevent its backflow, therefore preserving the one-way circuit of blood throughout the body and maintaining the efficiency of the cardiovascular system.