Take the D scale for example. Start on the D note at the second fret and move up the scale like this to the next D: If you play this same pattern up two frets (so the E is the first note you play), youâll have an E major scale. The same goes for any other pattern you can spot in these scale maps.
A pacemaker signals the heart to beat when the heartbeat is too slow or irregular. A pulse generator is a small metal case that contains electronic circuitry with a small computer and a battery that regulate the impulses sent to the heart.
â¢ Your heart beats too slow or too fast.â¢ Your heart doesnât beat regularly.â¢ Thereâs a block in your heartâs electrical pathways. How does it work? â¢ A pacemaker uses batteries to send electric signals to your heart to help it pump the right way.â¢ The pacemaker is connected to your heart by one or more wires. Tiny electric charges that you canât feel move through the wire to your heart.â¢ Pacemakers work only when needed.