A switch is used to start the flow of current in an electrical circuit.
An electrical circuit is a circuitous path of wire and devices.
A switch is used to start the flow of current in a path of devices.
A switch is used to start the flow of current in a path of

[1] blood
[2] devices
[3] size
[4] closed
[5] cycles
[6] complete
[7] coiled
[8] energy