closed circuit
Electric potential difference or voltage is the force that keeps current flowing in a circuit. The potential difference creates an electric field, which in turn exerts a force on the charged particles in the circuit, causing them to move and establish a current flow.
Voltage is the force that keeps current flowing in a circuit. It provides the "push" that drives the flow of electrons from one point to another. Without voltage, there would be no driving force to maintain the current flow.
Your heart keeps your blood "flowing"
The outlet breaker keeps tripping because there is an overload of electrical current flowing through the circuit, causing the breaker to automatically shut off to prevent overheating and potential fire hazards.
your heart is a pump and keeps the blood flowing
Current passing through a resistor, et al, causes heat. The heat causes the resistance of said resistor to decrease, which causes current to increase, and the cycle just keeps going until the circuit burns out.
It keeps your digestive system flowing smoothly and keeps you 'regular'.
it keeps your blood flowing
The main circuit breaker keeps tripping because there is an overload of electrical current flowing through the circuit, which can be caused by too many appliances running at once, a short circuit, or a faulty electrical component.
The heart is the organ that keeps the blood flowing. Valves in the heart ensure the flow is only in one direction.
A clot
That would be its keel.