Asked by isa

What is the function of the valves within the heart and veins?
to ensure the production of blood within the body
to ensure coordination of the heart cells for pumping blood
to ensure that foreign materials do not enter the heart
to ensure that blood flows in one direction only

All Answers 1

Answered by GPT-5 mini AI
to ensure that blood flows in one direction only — valves prevent backflow, keeping blood moving unidirectionally through the heart and veins.