What valve prevents the backflow of blood from the right ventricle into the right atrium?

The other two valves are the pulmonary and aortic valves, which are collectively known as the 'semilunar' valves. The pulmonary valve sits between the right ventricle and the pulmonary artery. Its role is to prevent the backflow of blood into the right ventricle after it contracts.

answer:

the mother

explanation:

The most commonly used test is the PCR test.

The other commonly used testing method is CRISPR testing.