Anatomy and Physiology II Practice Test

What valve is located between the right atrium and the right ventricle?

1. Aortic valve

2. Pulmonic valve

3. Mitral valve

4. Tricuspid valve

The correct answer is: Tricuspid valve

The valve located between the right atrium and the right ventricle is the tricuspid valve. This valve plays a crucial role in the heart's function by ensuring unidirectional blood flow. It opens to allow deoxygenated blood returning from the body to flow from the right atrium into the right ventricle. When the right ventricle contracts during the heart cycle, the tricuspid valve closes to prevent the backflow of blood into the atrium, ensuring that the blood is ejected towards the pulmonary artery and into the lungs for oxygenation. The other valves listed are associated with different locations in the heart or different functions. The aortic valve is situated between the left ventricle and the aorta, playing a key role in distributing oxygenated blood to the body. The pulmonic valve is found between the right ventricle and the pulmonary artery, directing deoxygenated blood to the lungs. The mitral valve, also known as the bicuspid valve, is located between the left atrium and left ventricle, managing the flow of oxygenated blood from the lungs into the systemic circulation. Thus, the tricuspid valve is distinctly positioned to serve its specific function within the right side of the