Microfilaments
It keeps your digestive system flowing smoothly and keeps you 'regular'.
it keeps your blood flowing
The heart is the organ that keeps the blood flowing. Valves in the heart ensure the flow is only in one direction.
A clot
Your heart keeps your blood "flowing"
Getting plenty of water and fiber in your diet keeps your colon healthy.
it keeps blood flowing
permanently frozen soil
Valves
BEARS
Valves
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.