Certified Rhythm Analysis Technician (CRAT) Practice Exam 2026 – All-in-One Study Guide for Exam Success!

The term for the ability of heart cells to receive and transmit an electrical impulse is conductivity. This characteristic is crucial for the coordinated contraction of the heart, allowing signals to propagate through the cardiac tissue and trigger the heartbeats. Conductivity refers specifically to the heart's ability to conduct electrical impulses between cardiac cells efficiently, ensuring that the cells work together coherently to maintain a regular rhythm.

The other options pertain to different functions of cardiac cells. Automaticity describes the heart's ability to generate spontaneous electrical impulses without external stimulation. Excitability refers to the cells' ability to respond to these impulses, while contractility relates to the heart's muscle fibers' ability to contract when stimulated. While all these properties are essential for the heart's overall function, conductivity is the specific term that defines the transmission of electrical impulses between cells.