Which of the following is NOT part of the anatomy of a pacemaker lead?

The anatomy of a pacemaker lead is composed of several components that play specific roles in the overall function of the pacing system. The connector is the part that interfaces with the pacemaker device, allowing for the transmission of electrical signals. The anode and cathode are essential components of the lead itself; they are the electrode points through which electrical impulses are delivered to stimulate the heart muscle.

Capacitance, on the other hand, is not a physical component of the lead but rather a property related to how much charge an electrical component can store. While capacitance might influence some aspects of electrical performance in a system, it is not part of the anatomical structure of a pacemaker lead itself. This distinction is crucial as it identifies capacitance as an electrical characteristic rather than a tangible part of the physical lead, making it the correct response in identifying what does not belong to the anatomy of a pacemaker lead.