Which of the following is a result of ventricular contraction?
A)The AV valves open.
B)The semilunar valves close.
C)Blood is pumped into the pulmonary artery and the aorta.
D)Blood flows back into the atria.

Question

Quizplus · Accepted Answer

Ventricular contraction results in blood being pumped into the pulmonary artery and aorta, as the pressure in the ventricles increases and exceeds that of the arteries, causing the semilunar valves to open and blood to be propelled forward. The AV valves will be closed during this phase to prevent backflow into the atria. Blood flowing back into the atria would be a result of faulty valves or other heart defects, not a normal outcome of ventricular contraction.

Which of the Following Is a Result of Ventricular Contraction