The heart valves keep blood from flowing backward. This increases the efficiency of the pumping of the heart.
Your heart keeps your blood "flowing"
The pumping of the heart keeps the blood moving
Heart blood vessels is what collects blood and pumps it to the lower chamber. This is what keeps the heart in working function.
The heart is the organ that keeps the blood flowing. Valves in the heart ensure the flow is only in one direction.
A clot
Yes.
it keeps pumping blood
The heart.
in the arterial system, your heart keeps pushing everything forward. in the venous system, you have valves everywhere to reduce backflow
the circulatory system is the heart, it keeps you alive and keeps your blood pumping!
the circulatory system is the heart, it keeps you alive and keeps your blood pumping!
the heart never relaxes and the blood always keeps on moving to other parts of the body