MRCP UK EXAMINATIONS

Detailed explanation-1: -When the left ventricle contracts, the right ventricle also contracts. This causes the pulmonary valve to open and the tricuspid valve to close.

Detailed explanation-2: -The pulmonary valve is one of four valves that control blood flow in the heart. It’s between the lower right heart chamber (right ventricle) and the artery that delivers blood to the lungs (pulmonary artery).

Detailed explanation-3: -pulmonary valve: located between the right ventricle and the pulmonary artery. mitral valve: located between the left atrium and the left ventricle. aortic valve: located between the left ventricle and the aorta.

Detailed explanation-4: -Pulmonary semilunar valves close to prevent the back flow of the blood into the ventricles. This closure produces a ‘Dubb’ sound which is the sound heard on placing a stethoscope onto the chest and listening.