The synchronization of the atrial and ventricular events is the topic of the prenursing physiology class today. What are the physiologic characteristics of the nodal and Purkinje cells that provide this synchronization? (Mark all that apply.)
A) Loop connectivity
B) Excitability
C) Automaticity
D) Conductivity
E) Independence
Ans: B, C, D
Feedback: Three physiologic characteristics of two types of specialized electrical cells, the nodal cells and the Purkinje cells, provide this synchronization: automaticity, or the ability to initiate an electrical impulse; excitability, or the ability to respond to an electrical impulse; and conductivity, the ability to transmit an electrical impulse from one cell to another. Loop connectivity is a distracter for this question. Independence of the cells has nothing to do with the synchronization described in the scenario.
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