This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
During the Ventricular Systole, atrioventricular valves open, semilunar valves close. The statement is 
Select and explain. 
A. TRUE, B. FALSE, C. Partially true, D. Partially false
B: FALSE
Answer: B: FALSE 
Explanation: During ventricular systole, contraction of the ventricles causes pressure in the ventricle to increase. 
Almost immediately the AV valves close (the first heart sound). The pressure in the ventricle continues to increase. 
Continued ventricular contraction causes the pressure in the ventricle to exceed in the pulmonary trunk and aorta. As a result, the semilunar are forced open and blood is ejected into the pulmonary trunk and aorta.