What is the name of the one-way valve located between the right atrium and right ventricle?

The one-way valve located between the right atrium and right ventricle is known as the tricuspid valve. This valve plays a crucial role in the heart's function by ensuring that blood flows in the correct direction. It prevents the backflow of blood into the right atrium when the right ventricle contracts to pump blood into the pulmonary artery, directing it toward the lungs for oxygenation.

The tricuspid valve is characterized by its three leaflets or cusps, which are designed to open and close tightly to maintain the unidirectional flow of blood. This construction is essential for efficient cardiac function and is a significant aspect of the heart’s overall anatomy.

The mitral valve is located between the left atrium and left ventricle; the aortic valve is positioned between the left ventricle and the aorta; and the pulmonic valve is situated between the right ventricle and the pulmonary artery. Each of these valves serves specific locations and functions within the heart, but only the tricuspid valve connects the right atrium and right ventricle, making it the correct answer.