Question

When the pulmonary semilunar valves open, blood flows from the

A. left atrium to the left ventricle
B. left ventricle to the aorta
C. right ventricle to the pulmonary trunk
D. pulmonary trunk to the pulmonary veins

Answer 1

C. Right ventricle to the pulmonary trunk.

Step-by-step explanation:

When the right ventricle contracts, blood flows through the pulmonary semilunar valves into the main pulmonary artery also known as pulmonary trunk.