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.
A pacemaker is a small device that is used to regulate your heart rhythm. The pacemaker system, which consists of a battery pack (pulse generator) and either one of two wires (leads), is surgically implanted under the skin in your chest, just beneath your collarbone.