Q.What does a pace maker do?

Step 1. A pacemaker is an implanted medical device whose overall job is to regulate the beating of the heart using electrical impulses.

Step 2. It becomes necessary in two situations: when the heart's own natural pacemaker (the sinoatrial node) is not firing fast enough on its own, or when there is a block somewhere in the heart's normal electrical conducting pathway that prevents its signal reaching the heart muscle properly.

Step 3. Structurally, it works through a pulse generator (a sealed unit containing lithium-halide battery cells and a control circuit) connected to an electrode; the generator delivers low-energy electrical pulses through the electrode, prompting the heart muscle to contract at a controlled, normal rate, and it is implanted under the skin below the collarbone. …

Describe the pacemaker's core function (electrically regulating heart rate) and the t …

• Describing a pacemaker only as a 'heart monitor' without mentioning that it actively delivers corrective electrical impulses. …