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.
Pacemaker implantation is a procedure to put a small battery-operated device called a pacemaker into your chest. The pacemaker sends regular electrical pulses which help keep your heart beating regularly.n implantable cardioverter defibrillator (ICD) is a device similar to a pacemaker. This sends a larger electrical shock to the heart that essentially reboots the heart to get it pumping again. Some modern devices contain both a pacemaker and an ICD.