Asked by Tyler Novak on Jul 05, 2024
Verified
The semilunar valves prevent blood from moving:
A) from the atria back into the veins.
B) from the ventricles back into the atria.
C) from the arteries back into the ventricles.
D) moving backward in the capillaries.
E) moving backward in the arteries.
Semilunar Valves
Valves located at the exits of both the heart's ventricles, preventing backflow of blood into the heart during contraction.
Moving Backward
The process of going in a direction opposite to the one that is considered forward or advancing.
- Acknowledge and clarify the roles of diverse heart valves.
Verified Answer
FM
Fabio MassaJul 05, 2024
Final Answer :
C
Explanation :
The semilunar valves, which include the aortic valve and the pulmonary valve, prevent blood from moving back into the ventricles from the arteries (the aorta and the pulmonary artery) after it has been pumped out of the heart. This ensures the unidirectional flow of blood through the heart and into the systemic and pulmonary circulations.
Learning Objectives
- Acknowledge and clarify the roles of diverse heart valves.