Patient Care Technician (PCT) AAH Practice Exam

Which valve is located between the left atrium and the left ventricle?

1. Aortic valve

2. Tricuspid valve

3. Pulmonary valve

4. Mitral valve

The correct answer is: Mitral valve

The valve situated between the left atrium and the left ventricle is the mitral valve. Its primary function is to allow blood to flow from the left atrium into the left ventricle while preventing backflow into the atrium during ventricular contraction. The mitral valve operates through two flaps, or leaflets, ensuring an efficient and controlled flow of oxygenated blood to the left ventricle, which then pumps it into the aorta for distribution throughout the body. The aortic valve, located between the left ventricle and the aorta, regulates blood flow from the heart into systemic circulation, while the tricuspid valve is found between the right atrium and right ventricle, managing blood flow on the right side of the heart. The pulmonary valve, positioned between the right ventricle and the pulmonary artery, controls blood flow to the lungs. Each of these valves plays a vital role in their respective areas but does not connect the left atrium and left ventricle as the mitral valve does.