The valves in the heart related to circulation of deoxygenated blood are

The valves in the heart related to the circulation of deoxygenated blood are the tricuspid valve and the pulmonary valve. These valves play a crucial role in directing the flow of blood from the right atrium to the right ventricle and then from the right ventricle to the pulmonary artery, which carries the deoxygenated blood to the lungs for oxygenation.

• Tricuspid Valve: The tricuspid valve is located between the right atrium and the right ventricle. It prevents the backflow of blood from the right ventricle into the right atrium when the right ventricle contracts and pumps blood into the pulmonary artery.
• Pulmonary Valve: The pulmonary valve is located between the right ventricle and the pulmonary artery. It prevents the backflow of blood from the pulmonary artery into the right ventricle when the right ventricle relaxes after pumping blood into the pulmonary artery. This valve allows blood to flow into the pulmonary artery and on to the lungs for oxygenation.

Bicuspid Valve (Mitral Valve): It's between the left atrium and left ventricle, preventing backflow when the left ventricle contracts.

Semilunar valves include:

• Pulmonary Valve: Found between the right ventricle and the pulmonary artery, it prevents blood from flowing back into the right ventricle.
• Aortic Valve: Located between the left ventricle and the aorta, it stops blood from returning to the left ventricle.