What is the name of the atrioventricular valve located on the left side of the heart?

The atrioventricular valve located on the left side of the heart is known as the bicuspid valve, also commonly referred to as the mitral valve. This valve plays a crucial role in the cardiac cycle by allowing blood to flow from the left atrium into the left ventricle while preventing backflow when the ventricle contracts. The structure of the bicuspid valve consists of two leaflets or flaps, which is where it gets its name “bicuspid.” This design is vital for maintaining unidirectional blood flow and ensuring efficient heart function.

In contrast, the other choices represent different components of the heart. The aortic valve is located between the left ventricle and the aorta, facilitating blood flow from the heart to the body. The tricuspid valve, found on the right side of the heart, comprises three leaflets and functions similarly to the bicuspid valve but for the right atrium and ventricle. Finally, the pulmonary valve is located between the right ventricle and the pulmonary artery, regulating blood flow to the lungs. Understanding these distinct roles helps clarify why the bicuspid valve is the correct answer for the left side of the heart.