Question

multiple choice question
the fibrous skeleton of the heart is a ______ of electricity.

conductor
nonconductor

Explanation:

The fibrous skeleton of the heart is made of dense connective tissue (like collagen), which does not conduct electrical signals. Conductors allow electricity to flow, while nonconductors (insulators) prevent or impede electrical conduction. The heart's fibrous skeleton acts as an insulator (nonconductor) to direct electrical impulses through specific pathways (like the atrioventricular bundle) instead of spreading randomly.

Answer:

B. nonconductor