Question: the semilunar valves are the quizlet?
Answer: Semilunar valve located between the right ventricle and the pulmonary trunk that leads to the lungs. A semilunar valve located between the left ventricle and the aorta.. After contraction of the left ventricle, back pressure closes the aortic valve and prevents the back flow of blood from the aorta into the ventricle.