Which component delivers controlled electrical pulses to the sacral nerves in SNM therapy?

• A. External battery pack.
• B. Trial stimulator.
• C. Implantable pulse generator.
• D. Pacemaker.

Answer: (C)

The implantable pulse generator delivers the controlled electrical pulses to the sacral nerves. Placed under the skin, it powers the leads positioned near the sacral nerves and provides programmable settings for the pulse rate, amplitude, and duration to modulate nerve activity. During testing, a trial stimulator with an external battery can be used to assess response before permanent implantation, while a pacemaker is unrelated to sacral nerve modulation.